Best Running Socks of 2026

Socks are arguably one of the most important pieces of running gear, and choosing the best running socks for your unique needs is worth thoughtful consideration and a bit of investment. Well-constructed, tailored running socks are generally more expensive than cheaply woven silhouettes — for good reason.

The best running socks feature a scientific curation of fibers for moisture management, heat transfer, placement and depth of cushion, and height. Many are designed for specific conditions: toasty canyons, winter storms, steep and rocky trails, or dusty singletrack. A better-made sock also survives more miles through the wilderness than a bargain option.

To create this guide, our team of professional, competitive, collegiate, and recreational trail runners and ultrarunners pulled on a range of hosiery for thousands of miles. From dusk to dawn, we ran across the Rocky Mountains, through the Cascade Mountains, all over the western United States, and throughout New Zealand in gloppy mud, sunbaked singletrack, snow, and rain.

At the top of our list of socks is the Swiftwick Flite XT Trail Mid-Crew, which has an excellent fit and wicks away moisture quickly and efficiently. We loved the Drymax Extra Protection Hot Weather Running 1/4 Crew Socks for running in hot weather, while the Swiftwick Pursuit Quarter Crew High was our favorite wool-blend sock.

Also, learn more about our testing methodology, read our advice for choosing your next running socks, and see our frequently asked questions about running socks at the bottom of this guide.

[Editor’s Note: Updated June 9, 2026 to add multiple categories and even more new selections, including the Courier LoFi Sock and Bombas Merino Wool Blend Run Quarter Socks. Prices and availability were also verified.]

Best Running Socks

• Best Overall Running Socks: Swiftwick Flite XT Trail Mid-Crew
• Best Running Socks for Hot Weather: Drymax Extra Protection Hot Weather Running 1/4 Crew
• Best Running Socks for Cold Weather: Lé Bent Zero Cushion 3/4 Crew Trail Sock
• Best Wool Running Socks: Swiftwick Pursuit Quarter Crew High
• Best Compression Socks for Running: CEP Core Run Tall Compression Socks 5.0
• Best Toe Socks for Running: Injinji Run Lightweight Crew
• Best Ankle Running Socks: Smartwool Run Ankle Socks
• Other Great Running Socks:
  • Bombas Merino Wool Blend Run Quarter Sock
  • Courier LoFi Sock
  • Darn Tough Stride Micro Crew Ultra-Lightweight Running Sock
  • Feetures Elite Ultra Light Mini Crew
  • Paka Essential Crew Socks
  • Stance Franchise UL Crew

Best Overall Running Socks: Swiftwick Flite XT Trail Mid-Crew ($27)

Pros:

• Snug and secure
• Manages moisture super well and dries fast
• The moderate cushion is not too thick or too thin

Cons:

• Compression fit can be difficult to put on

The Swiftwick Flite XT Trail Mid-Crew is a snug-fitting running sock with a soft feel, excellent breathability, and thumbs-up ankle protection. Designed for hiking and trail running, they incorporate materials and a knit design to wick moisture, prevent blisters, and provide extra support on uneven terrain. Swiftwick achieves this with a blend of merino wool and olefin fibers, which have natural wicking properties, and nylon, polyester, and spandex, which are breathable and quick drying.

This sock has moderate cushioning beneath the arch and heel, which we found provides adequate protection mile after mile, especially on rocky descents. The fabric below the forefoot and heel has alternating rows of cushion that feature a proprietary grippy fiber to reduce friction and prevent bunching that can result in blisters.

The top of the sock is a slightly thinner mesh that increases breathability, and the snug compression around the arch and ankle feels like a nice, firm hug. While these socks do not have significant compression, they provide enough of a squeeze to feel supportive. They are also tight enough to count on them not to move around on your foot without feeling constrictive, though some testers reported that this made them more challenging to put on.

Although many trail runners love this sock’s extra height and ankle protection, this line of socks offers other options. A Swiftwick Flite XT Trail Quarter Crew hits just above the ankle bone, and the non-trail version of this sock, the Flite XT, has also been a longtime favorite among iRunFar testers and is available in No-Show, Ankle, and Mid-Crew options.

Material: 38% nylon, 24% merino wool, 22% olefin, 13% polyester, 3% spandex

Shop the Swiftwick Flight XT Trail Mid-Crew

Best Running Socks for Hot Weather: Drymax Extra Protection Hot Weather Running 1/4 Crew Socks ($28)

Pros:

• Lightweight
• Excellent ventilation
• Tenacious, long-lasting fabric

Cons:

• Not the softest

The Drymax Extra Protection Hot Weather Running 1/4 Crew Socks are lightweight, very breathable, and resist heat buildup during hot, sun-exposed runs and races. The upper side of the sock features a mesh weave that dumps heat. A consistent layer of moderate padding stretches along the bottom of the foot, from heel to toe, beneath the metatarsals, and provides excellent protection and comfort.

The fabric blend includes a Teflon fiber — polytetrafluoroethylene (PTFE) — which, according to the Polymer Properties Database, is among the best synthetic materials for minimizing friction. The PTFE is located in the heel, forefoot, and toe areas, making them super durable. While we generally shy away from products that contain these types of perfluoro compounds, we think they make a big difference in performance of these socks.

One professional mountain runner and product tester has used a pair of these socks for three years and notes no visible wear and tear. He added, “The slim fit works well with snugger-fitting shoes,” and the lower quarter-crew length sits an inch above the ankle, which is generally preferable for toasty jaunts. The fiber blend also includes olefin, which wicks moisture and sweat.

After pounding countless miles in these socks, we experienced no blisters, slippage, or lingering odors. The interior of the toebox was smooth and went unnoticed. The only downside to these socks is that they aren’t very soft, and testers sometimes describe them as coarse to the touch.

Material: 36% Drymax olefin, 26% polytetrafluoroethylene (PTFE), 22% polyester, 12% spandex, 4% nylon

Shop the Drymax Extra Protection Hot Weather Running Crew 1/4 Socks

Best Running Socks for Cold Weather: Lé Bent Zero Cushion 3/4 Crew Trail Sock ($27)

Pros:

• Impressively odor-resistant
• Durable

Cons:

• May be too thick for hot conditions

While there are plenty of different materials that companies are blending with merino wool, adding bamboo to the Lé Bent Zero Cushion 3/4 Crew Trail Sock makes these socks stand out from the rest. While at first glance, this sock feels a bit thicker than other options, the stretch of the bamboo-based rayon, combined with merino wool, nylon, and elastane, makes the sock feel fairly thin. The zero-cushion profile eliminates excessive bulk in the sock, and we never experienced any issues with them bunching up. This sock is a great year-round option for many runners or an ideal cold-weather sock.

We tested these socks in the wet, scraggly, and rough backcountry of New Zealand, where socks were guaranteed to get wet early on during any outing, bashed against rocks, hung up on bush lawyer plants, and abraded from scree in shoes. We found that they were remarkably durable after many miles of running and bushwacking.

The instep of the sock has additional elastic to provide extra support and prevent bunching, and ventilation panels throughout the top provide extra breathability. An additional bit of elastic around the ankle keeps the fit around the heel snug and provides some extra support. The height of these socks is perfect for rugged trail and off-trail use, as they protect the ankle and bottom of the shin from scratches.

Bamboo fibers are known for reducing odor buildup, and when combined with wool, they create a very stink-free material. We wore these socks on a four-day fastpack, during which they never had a chance to dry out completely, and we were impressed by how they didn’t smell awful at the end of the trip. All of the wool is certified non-mulesed merino, so that you can feel good about the sourcing of the material.

Materials: 28% rayon from bamboo, 19% merino wool, 49% nylon, 4% elastane

Shop the Le Bent Zero Cushion 3/4 Crew Trail Socks

Best Wool Running Socks: Swiftwick Pursuit Quarter Crew High ($20)

Pros:

• Soft, fuzzy, and cozy interior
• Wool has natural temperature-regulating properties
• The cuff feels snug and secure

Cons:

• A slightly thicker design is too warm on the hottest days

The Swiftwick Pursuit Quarter Crew High is a moderately cushioned sock that’s made mostly of merino wool, with nylon and spandex added for more softness, stretch, durability, and compression. The inside of the sock feels fuzzy and soft, ideal for those brisk shoulder-season runs. At the same time, it hugs the foot enough to not feel bulky or bunchy.

Merino wool is a natural fiber known for its temperature-regulating properties. It provides warmth in cold conditions, cooling in hot weather, and wicks moisture regardless of the temperature. The downside of wool is that it can feel scratchy or coarse compared to synthetic fibers, yet we found this sock incredibly comfortable.

Wool is also typically less durable than synthetics, though wool blended with nylon, polyester, spandex, or other materials is comparable. This sock has wool wrapped around a blend of nylon and spandex, and the material gently squeezes the foot, providing slight compression around the midfoot and cuff. This design and a seamless toebox help keep the sock in place, reducing the likelihood of developing blisters.

While this sock can perform throughout all seasons, its moderate cushioning and cozy, fuzzy feel may make it too warm for runners during the summer heat. This is especially true if you prefer thin socks under a more snug-fitting shoe. This line of socks comes in a variety of height ranges that will suit nearly any need.

Material: 63% merino wool, 35% nylon, 2% spandex

Shop the Swiftwick Pursuit Quarter Crew High

Best Compression Socks for Runners: CEP Core Run Tall Compression Socks 5.0 ($60)

Pros:

• Advanced fabrics from a company known for compression gear
• Multiple color combinations are available
• Soft, breathable material

Cons:

• Expensive

The CEP Core Run Tall Compression Socks 5.0 are a new option from a company known for its high-quality compression garments. CEP makes an extensive line of compression clothing, and the CEP Core Run Tall Compression Socks 5.0 are a great choice for both running and recovery. Our main tester has used prior versions of CEP’s tall compression socks for several years, and found the updates in the new sock to be all positive.

The material is lightweight and moisture-wicking, with ventilation panels and airflow channels that we found feel lighter and more breathable than their predecessor. Decreased cushion and more targeted padded areas on the footbed lend to the overall lighter feel. The overall fit is much improved, with the length hitting just below the knee on our five-foot-three-inch tester. The prior version was quite a bit longer and hit awkwardly at mid-knee so this update is greatly appreciated.

These socks feature graduated 20 to 30 millimeters of mercury (mmHg) compression with targeted areas in the calf, arch, and ankle for increased support. The 5.0 have updated compression zones with specialized “Angel Wing” technology for targeted Achilles support and 3D muscle support in the calf for better stabilization. Sadly, this did not cure our tester’s achilles tendonitis – but they felt great during recovery walks and long work shifts on tired feet.

The CEP Core Run Tall Compression Socks 5.0 is a great update of a top-notch compression sock, and one we will no doubt be reaching for for years to come.

Material: 84% polyamide, 16% elastane

Shop the Men's CEP Core Run Tall Compression Socks 5.0Shop the Women's CEP Core Run Tall Compression Socks 5.0

Best Toe Socks: Injinji Run Lightweight Crew ($17)

Pros:

• Minimizes blisters between the toes
• Great cushion and breathability
• Great value

Cons:

• Toe socks aren’t for everyone
• Short and tiny or high-volume toes are the least compatible with these socks

If you haven’t tried toe socks — and many on the iRunFar team recommend you do — the Injinji Run Lightweight Crew is worth a closer look. One of our gear editors turned her nose up at toe socks for years until a pair finally worked their way into her life, and now she’s wondering what took her so long to become a convert. If you’ve already discovered toe socks, there’s a solid chance you have a drawer full of these or some variation of them. For some runners, toe socks are the answer to staying comfortable and blister-free on their longest ventures and daily miles.

Theoretically, fabric wrapped around each toe keeps digits from brushing against each other, reducing friction, chafing, and blisters, especially between the toes. The design also helps splay the toes out, encouraging them to engage while running. That said, if you’re running in shoes with a narrow toebox, toe socks may actually take up too much volume and cause chafing on the outside of the big and little toes.

We found this sock protective, comfortable, cushioned, and breathable during testing. It has a super-soft, lightweight fabric around the toes, and its stretchy fit reaches up to mid-calf height, putting it among the tallest of the crew socks in this guide. Since this extra-tall crew height could make the sock more or less appealing depending on the length of your lower leg and personal preferences, it’s worth pointing out that this weight of sock is also available in a mini-crew that hits above the ankle and a no-show version.

In testing, the moisture transfer in these socks was excellent, and they never got drenched with sweat. The fabric didn’t slip and never bunched. By the end of long runs, these socks held onto their elasticity and didn’t smell.

When it comes to toe socks, Injinji’s offerings are widely loved and runner-approved. That said, toe socks like this may take some getting used to, and some runners will feel uncomfortably aware of the fabric between their toes, especially on a sustained, steep, and technical descent. They also require a bit more work to get all the toes turned right-side-out before or after washing. As such, toe socks may not be the right solution for every runner.  Nevertheless, they’re a worthy consideration for your sock drawer — and at a very reasonable price for a pair of socks, they’re worth a try if you’re curious.

Material: 63% Nylon, 33% CoolMax, 4% Lycra

Shop the Injinji Run Lightweight Crew socks

Best Ankle Running Socks: Smartwool Run Ankle Socks ($21)

Pros:

• Sufficient ankle protection
• Stink-resistant and durable wool blend
• Cuff stays put

Cons:

• Not as durable as other top picks

For runners who want a high-quality, no-frills, wool-blend sock without a lot of cushion, fancy tech, or a super tall cuff, the Smartwool Run Ankle Socks are our top recommendation. Although these wool socks are relatively thin, they’re still pretty durable, thanks to a mix of nylon and elastane blended with the merino wool. That said, some of our testers have reported that these show holes sooner than some of our other favorite wool-blend or synthetic socks.

Although they have a bit of targeted cushion under the ball of the foot and the heel, these aren’t highly cushioned socks by any stretch. We appreciated this sock for its breathability and lack of bulkiness or wrinkles. The 3.25-inch cuff stays put and provides enough ankle protection on the trail, while the seamless toe design gives toes room to wiggle and helps to prevent chafing.

“I’d say they’re just a super solid pair of durable socks that seem to last for a long time, especially for relatively thin wool,” reported one tester who wore these socks while running and fastpacking all over Colorado and southern Utah. “They don’t bunch up at all and don’t get gross and damp during long days out.”

In addition to being comfortable, breathable, and reliable, these socks are made in the U.S. and are available in a handful of fun patterns and colors. And, if you’re wondering what to do with older Smartwool socks that are taking up space at the bottom of your drawer, Smartwool will take them off your hands — er, feet. Through their Second Cut Project, Smartwool partners with ThredUp to keep lightly used socks from the landfill by reselling them. You can also return your old and worn-out socks to them for recycling. Learn more about Smartwool Second Cut.

Material: 45% merino wool, 31% nylon,* 21% recycled nylon, 3% elastane

*Specific percentage of recycled nylon will vary as Smartwool transitions to 100% recycled nylon

Shop Men's Smartwool Run Ankle SocksShop Women's Smartwool Run Ankle Socks

Other Great Running Socks

Bombas Merino Wool Blend Run Quarter Socks ($25)

Pros:

• Super duper soft
• Impressively breathable for a midweight sock

Cons:

• On the thick side (but not too hot)
• Not particularly fitted

Not everyone prefers a thin, fitted running sock, and even those who do may by pleasantly surprised by the Bombas Merino Wool Blend Run Quarter Socks. These socks hit above the ankle but fall short of the full crew-height, making them a good option for those who want some ankle protection on the trails but not super tall socks. They’re soft, stretchy, and easy to put on. Our testers kept reaching for these socks for both running and everyday wear.

Like many of the socks chosen for this guide, these are made with a blend of merino wool and synthetic materials. The natural properties of wool help manage moisture buildup and odor, while nylon enhances durabilty and structure. This midweight sock has targeted cushioning around the heel and toe, plus light compression under the arch. They also have a seamless toe and designated left- and right-foot design. They have a stretchy fit that’s not as snug as others in this guide.

At first, testers perceived this sock as thick and potentially hot, but they discovered that it’s “shockingly breathable,” and incredibly soft, comfortable, and suitable for warm weather running. These socks have held up well after many miles of hard running on wet, hot, and dusty trails. In wet conditions, they retained a bit more moisture than thinner running socks, and although our testers didn’t experience any hot spots or other issues, these may not be the best choice for runners in humid environments who are prone to blisters.

Overall this is a buttery-soft sock that the iRunFar team constantly reaches for, and it’s a good alternative for runners who like a less-fitted and midweight design. Finally, this style is avalaible in a shorter ankle height, as well as a taller, “calf” (crew) height.

Material: 59% merino wool 37% nylon 4% elastane

Shop the Men's Bombas Merino Wool Blend Run Quarter SocksShop the Women's Bombas Merino Wool Blend Run Quarter Socks

Courier LoFi Sock ($29)

Pros:

• Interesting and effective cushioning design
• Comfortable and quick-drying over many hours

Cons:

• Expensive

With an aim to balance cushioning, breathability, and a performance fit, the Courier LoFi Sock offers one of the more unique sock designs we’ve tested. This sock contains textured “air pockets” around the back of the heel, top of the instep, and under the ball of the foot. The idea is that the textured bumps placed in specific areas provide cushioning as well as air flow where it’s needed the most — around the heel and metatarsal, which are common locations for sweat, pressure, or hot spots. Meanwhile, the rest of the sock is relatively thin, with graduated compression to ensure a snug fit that stays put.

The LoFi sock is made from a synthetic blend, containing mostly nylon, which is known to be highly durable, quick-drying and lightweight, yet able to retain its shape. It also contains a small amount of cotton and elastane in the blend for softness and stretch. Light compression around the cuff and under the arch help the sock stay in place. The material around the toes is slightly more cushioned and roomy, allowing the toes to splay.

Indeed, these socks acheive a great balance of cushion without feeling too thick, bulky, or hot. They breathe well and dry quickly, while maintaining a snug fit that doesn’t budge. They also work well for cycling, mountain biking, and other athletic pursuits.

Our primary tester was inititally skeptical of the LoFi sock’s techy design and relatively steep price tag, but now these are the socks she reaches for on long run days and ultra races. She wore them for 27 hours during the Pine to Palm 100 in 2025, and never needed a sock change. These socks have proven their durability over hundreds of miles, as they continue to hold their structure and show little wear.

Material: 55% Nylon, 31% Recycled Nylon, 9% Cotton, 5% Elastane

Shop the Courier LoFi Sock

Darn Tough Stride Micro Crew Ultra-Lightweight Running Sock ($21)

Pros:

• Lifetime guarantee
• 100% Responsible Wool Standard-certified materials

Cons:

• There is no extra cushioning on the sole

For our testing team members who self-identify as wool snobs, the Darn Tough Stride Micro Crew Ultra-Lightweight Running Sock is a favorite for many reasons. We found them incredibly comfortable, and we love that Darn Tough guarantees these socks for life. If you wear holes in them, you can send them back, and they’ll send you a new pair.

These merino-blend socks are 55% nylon, 38% merino wool, and 7% Lycra, making them durable and stretchy while taking advantage of wool’s moisture-wicking and odor-resistant properties. Many runners gravitate toward wool socks because they tend not to pick up smells, and fastpackers, who will wear the same socks multiple days in a row, love the material.

Several cooling panels around the sock increase its breathability and allow it to dry quickly. Made of thin fibers, this sock doesn’t feel bulky and lives up to its ultra-lightweight name. The crew length reaches about six inches above the top of a shoe, providing plenty of protection from any trailside brush or rocks.

The socks provide extra support under the arch, which also helps prevent bunching during long runs. However, there’s no extra padding on the sole, which might be an issue for people looking for more cushion from their socks. The minimal amount of material keeps the socks from slipping around and provides a skintight feel, which helps prevent blisters and other skin irritation.

Darn Tough is a privately owned company that makes all its socks in Vermont using 100% Responsible Wool Standard-certified wool, so you can feel good about wearing them. Plus, they look good and come in a few different color schemes. You can also find this sock in our Best Wool Running Apparel guide.

Material: 55% nylon, 38% merino wool, and 7% Lycra

Shop the Men's Darn Tough Stride Micro Crew Ultra-Lightweight Running SocksShop the Women's Darn Tough Stride Micro Crew Ultra-Lightweight Running Socks

Feetures Elite Ultra Light Mini Crew ($21)

Pros:

• Outstanding balance of light cushion and moderate compression
• Snug, no-budge fit

Cons:

• Solid sock, but not a standout in any one area

The Feetures Elite Ultra Light Mini Crew is another great crew sock that’s ideal for the trails. It has light cushioning with targeted compression around the arch and maintains a snug fit that doesn’t create hot spots. It also has an anatomical design with a dedicated left and right sock. Like many of the top picks in this guide, this sock hugs the foot comfortably, wicks sweat, and dries quickly. It doesn’t slip or bunch, and its crew height protects from rocks, mud, dust, and brush on the trail.

This sock is lightweight and breathable, thanks to thin mesh panels across the top. Its footbed, toebox, and cuff have slightly more cushioning and support than other parts of the sock. The arch has some ribbing for targeted compression, and the heel cup cradles the heel to provide a secure, supportive fit.

The toebox is slightly more roomy than other socks in this guide, giving the toes enough space to wiggle and splay. Without squeezing too much, this crew sock provides a hug-like fit and doesn’t shift around. This great everyday running sock performs well on everything from short, easy runs to mountain ultras.

Additionally, while we love these specific socks, Feetures offers a range of sock heights and cushion options ranging from ultralight no-show to max cushion synthetic to merino crew socks, all designed for running and other active use. Finally, these socks come with a lifetime guarantee, so if you don’t like them, they’re easy to return or exchange.

Material: 91% nylon, 9% spandex (these percentages have some minor variation depending on color)

Shop the Feetures Elite Ultra Light Mini Crew

Paka Essential Crew Socks ($25)

Pros:

• Velvety soft and supple
• Made with sustainable materials

Cons:

• Lacks compression of other socks in this guide

The Paka Essential Crew Socks are supremely soft, comfortable, lightweight, and breathable running socks. Yes, even our feet deserve buttery smooth apparel, and this sock wraps our feet in silky soft alpaca wool while providing all the performance we need in a running sock. These socks are also available in an ankle version, which is equally soft and stretchy and a favorite at iRunFar.

These socks are made in Peru using a blend of alpaca wool, Tencel, which is a fiber derived from eucalyptus wood pulp, nylon, and spandex. Both alpaca wool and nylon are soft, lightweight fibers, so this medium-cushion sock feels very smooth and light.

Likewise, Tencel, a brand name for lyocell fibers, is known for its super-soft feel and sustainability since it usually comes from sustainably harvested trees and produces less toxic waste in manufacturing than other synthetics. It’s also worth pointing out that Paka is a certified B-Corporation, which means it has met high standards for supply chain practices and the materials it uses.

These socks are constructed with thinner knit paneling around the midfoot and above the toes, with slightly thicker cushioning beneath the ball of the foot, around the heel, and behind the ankle. Like sheep wool, alpaca wool has natural temperature-regulating properties, keeping you warm in cold temperatures and dry on hotter days. It also resists odor-causing bacteria.

By blending alpaca wool with nylon and spandex, Paka can increase the durability and stretchiness of these socks. On that note, while these socks fit comfortably against the foot, they don’t provide any compression, and they’re among the stretchiest socks in this guide. In fact, we noticed our feet sliding around a bit inside these socks when we wore them without shoes. That said, we did not experience any bunching or hot spots once we put shoes on and took to the trails.

Material: 41% alpaca fiber, 8% Tencel, 50% recycled nylon, 1% spandex

Shop the Paka Essential Crew Socks

Stance Franchise UL Crew ($20)

Pros:

• Different cushioning options
• Highly breathable
• Reflective logo

Cons:

• Not a standout for durability

With five inches of cuff height above the ankle, the Stance Franchise UL Crew are ideal for runners logging long miles on dusty trails who want a thin sock that comes up high enough to provide some protection. They’re also ideal for those traveling through mud who need a quick-drying sock. These socks are made of an Intraknit nylon-blend material and treated with an antimicrobial FreshTek moisture-control coating to help prevent stink by reducing bacterial growth rate.

One of our testers has put hundreds of trail miles on the ultralight version of this sock, running over volcanic scree and granite-strewn ridges, through creek crossings, and even traversing cow pastures while racing in Europe. While the sock remained incredibly comfortable and the cuff showed only minor wear, eventually, holes started appearing in the toes.

This is not totally unexpected for such hard wear, but we’ve found that other socks in this guide have held up a little better on similarly rugged terrain. It’s worth noting that Stance offers a lifetime guarantee, so you can return socks that don’t meet expectations.

These socks provide a hug-like squeeze around the mid-foot and heel with just the right amount of wiggle room in the toes. They are exceptionally breathable on the hottest days, and we had no reports of blisters or hot spots.

Finally, although this is a thin sock with less cushioning underfoot than other options we tested, Stance offers variations with light- and medium-cushion levels as well as other sock heights, like the no-show Performance Tab Socks, which have also been very popular among the iRunFar testing team.

Material: 71% nylon, 19% polyester, 5% elastane, 5% combed cotton

Shop the Stance Franchise UL Crew

Comparing the Best Running Socks

SOCK	PRICE	WEIGHT	CUSHION
Swiftwick Flite XT Trail Mid-Crew	$27	Medium	Light
Drymax Extra Protection Hot Weather	$28	Light	Light
Swiftwick Pursuit Quarter Crew	$20	Light	Medium
CEP Core Run Tall Compression Socks 5.0	$60	Light	Light
Injinji Run Lightweight Crew	$17	Light	None
Smartwool Run Ankle Socks	$21	Light	Light
Lé Bent Zero Cushion 3/4 Crew	$27	Medium	Light
Bombas Merino Wool Blend Run Quarter Socks	$25	Medium	Medium
Courier LoFi Sock	$29	Light	Light
Darn Tough Stride Micro Crew	$21	Ultralight	None
Feetures Elite Ultra Light Mini Crew	$21	Light	Light
Paka Essential Crew Socks	$25	Medium	Medium
Stance Franchise UL Crew	$20	UL, L, M	UL, L, M

How to Choose Running Socks

Sock Material 

Many of the best running socks feature a blend of synthetic and natural materials. All socks need some nylon, polyester, or elastic to retain their shape, stretch, durability, and elasticity. Some of our favorite socks incorporate merino or alpaca wool, like the Swiftwick Pursuit Quarter Crew High and Paka Essential Crew Socks. The Lé Bent Zero Cushion 3/4 Crew Trail Sock combines bamboo and merino with synthetic fibers to create a stretchy and breathable material.

Studies show that natural fibers grown by animals, like wool, minimize odor and benefit those struggling with eczema. According to Woolmark, a nonprofit organization that works alongside Australia’s 60,000 woolgrowers to research, develop, and certify wool, wool fibers are moisture-wicking and breathable, making them an excellent choice for next-to-skin clothing.

Most wool socks, including the Darn Tough Stride Micro Crew Ultra-Lightweight Running Sock, wrap merino wool around a synthetic fiber, like nylon, to keep the wool fibers next to the skin but take advantage of the durability and stretchiness of the synthetic material to help the sock keep its shape and last for a long time.

A handful of our favorite socks include unique fibers like olefin and Tencel from eucalyptus, which enhance specific characteristics like breathability, moisture management, and a next-to-skin feel. We recommend avoiding cotton socks. Cotton retains moisture, so as your foot builds heat in a running shoe, you’ll likely experience hot spots or blisters.

Seams

One of the worst feelings in a sock is when the seams are irritating or abrasive.

Manufacturers generally knit running socks as tubes and finish them with a seam in the toe. The toe seam rests in a slightly different location for each sock, depending on the manufacturer’s design, but it is usually above and on top of the toes, with a closure alongside the outermost toes. The heel pocket also has a Y-shaped seam.

Not every seam is created equal. Some seams are flatter and softer than others, and the seams on the best running socks go completely unnoticed. The Swiftwick Pursuit Quarter Crew High and Bombas Merino Wool Blend Run Quarter Socks are designed with seamless toes. Additionally, toe socks such as the Injinji Run Lightweight Crew have no seams.

Moisture Wicking

In running socks, the majority of moisture-wicking yarns are synthetic. Synthetic fibers are fairly hydrophobic, so they resist the penetration of moisture. Brands weave synthetic fibers to allow capillary action between the fibers to move water away from your skin and to the outside of the material, where it can evaporate. The Courier LoFi Sock is made with nylon and a small amount of cotton and elastane, which work together to wick moisture without getting soggy or losing its shape.

Wool also has moisture-wicking properties since the surface of the wool fiber is hydrophobic while the core is hydrophilic. This evolutionary setup allows wool to use capillary action to move water away from the skin. We found that wool-blend socks, like the Lé Bent Zero Cushion 3/4 Crew Trail Sock and Swiftwick Pursuit Quarter Crew High, were able to keep our feet dry when running in the heat and warm when running in the cold.

Thick Versus Thin Socks

The right thickness for socks depends on a variety of considerations, including how snugly your shoes fit, the temperature conditions you’re running in, the amount of cushion you want, and the general feel you’re searching for. We asked the experts at Smartwool for advice on choosing the best running socks: “Cushioned socks help provide extra comfort, performance, and additional padding and protection in key areas. Socks with thicker cushioning typically pack more durability and longer comfort — that is, if you’ve got the right footwear on. If your foot feels cold and squished, your sock might be too thick for your shoe. The right cushioning will help protect your feet and keep them comfortable while you’re on the move.”

Indeed, for cooler and cold conditions, the best running socks are thicker and provide more insulation. Our testers chose the Lé Bent Zero Cushion 3/4 Crew Trail Sock as their favorite cold-weather socks. Our team also frequently reached for midweight socks, like the Paka Essential Crew Socks and Bombas Merino Wool Blend Run Quarter Socks, for their soft, comfortable feel. On the other hand, some thicker socks can feel too hot when temperatures rise. Thin socks with minimal cushion, like the Stance Franchise UL Crew, also work well with narrower, more precise footwear.

A trail runner’s ideal amount of cushion depends on personal preference, foot health needs, and foot type. People with narrow and low-volume feet often find that thicker socks take up volume in their shoes and provide a more secure fit, while runners with high-volume feet sometimes prefer thinner socks because their feet fill most of a shoe’s interior. Additionally, thicker socks often pair better with roomier trail running shoes with a wider toebox.

For some runners, minimal socks provide a sense of enhanced foot control inside their footwear while running technical terrain, especially if traversing loose rock or scrambling off-trail. If your feet swell on runs or during a race, it’s important to account for the available real estate inside your shoe, and a thinner sock might be a better choice. The Swiftwick Flite XT Trail Mid-Crew and Feetures Elite Ultra Light Mini Crew both offer a good balance of not-too-thick and not-too-thin.

Sock Height

The best running socks come in various sizes for different applications, from neighborhood sidewalks to rugged mountain ridges. No-show and extra-low cuts sit at and below the ankle, and a quarter-length sock rests above the ankle. A crew size hits beneath the calf, and an over-the-calf or knee-high sock reaches just below the knee.

Generally, a taller sock such as a quarter-length or crew-height, like the Bombas Merino Wool Blend Run Quarter Socks or Lé Bent Zero Cushion 3/4 Crew Trail Sock, is desired for trail running and ultrarunning to cover and protect the ankle and lower leg from tall grass or brush, rocks, and anything else that can scratch you. Low-cut socks are great for runs on the track or road with no vegetation or when it’s really hot.

Some people love socks that disappear into the shoe. The lowest-cut sock we included in this guide is the Smartwool Run Ankle Socks, which still provide reasonable ankle protection. Again, this is ultimately a matter of personal preference, and many of the socks in this guide are available in multiple height options.

On the opposite end of the spectrum from no-show socks are knee-high socks, which provide the most protection against the elements. Many trail runners opt for taller socks, even though they inherently feel warmer than shorter socks. Tall socks can also feature graduated compression where they are tightest at the ankle and become gradually looser further up the leg. Most tall compression socks, including the CEP Core Run 5.0 Tall Compression Socks, provide 20 to 30 millimeters of mercury of compression.

With the exception of compression socks, our top-ranked socks reach above the ankle and below the calf. Our highest-rated socks for most of our runs from mountains to deserts are a range of crew heights that rise three to five inches above the ankle. We found that our favorite overall sock, the Swiftwick Flite XT Trail Mid-Crew, excelled in a variety of conditions.

Compression Socks

Compression socks have long been used in the medical world to improve blood flow, reduce swelling, and improve comfort for people with conditions like varicose veins, blood clots, or circulation problems. They are also popular in situations that can cause leg swelling, such as standing for long hours, during pregnancy, and traveling. This ability to increase blood flow and potentially improve athletic performance has led to a boom in companies offering all manners of athletic compression clothing ranging from socks to arm sleeves to shirts to full tights.

For running, the compression applied to the lower legs by compression socks may help increase blood flow to and from the leg muscles. Every time our heart pumps, it sends blood with oxygen out to our organs and muscles. The more a muscle is used, such as during running, the more oxygen it will need to function.

Active muscles also create more by-products of energy production, such as lactic acid, that you should remove from the tissue. In theory, compression socks help with this by increasing blood flow. They are useful for preventing fluid accumulation in the lower legs and ensuring blood returns to the heart as efficiently as possible.

This can reduce the potential for swelling and help oxygen get back to your muscles while they are working hard. The potential for improved lactic acid removal can also decrease muscle soreness during and after activity.

Many companies also make a compression calf sleeve and a full knee-high sock. Both styles have pros and cons, even with similar compression levels and benefits, so the decision ultimately comes down to personal preference.

Durability

The most durable running socks employ a blend of synthetic fibers, which helps the sock maintain its form and support. Synthetic fibers are more robust and stretchy and have a longer lifespan than natural fibers such as sheep or alpaca wool. This explains why every sock in our guide holds a percentage of synthetic material, even when mixed with natural fibers. A synthetic blend coupled with natural fibers, like that in the Darn Tough Stride Micro Crew Ultra-Lightweight Running Sock, is still a top choice for running socks because natural fibers provide specific qualities such as moisture transfer, breathability, odor resistance, or softness. We appreciate that Darn Tough will replace socks that develop holes in them.

Performance socks feature abrasion-resistant fibers in high-use areas of the foot that normally wear down, like beneath the toe, Achilles area, and heel.

Why You Should Trust Us

We began this guide by polling the 20-plus-person iRunFar team with hundreds of years of running experience about their preferred running socks. We also researched dozens of the highest-ranked, most popular, and top-selling socks for runners. In doing so, we honed a list of running socks for regimented testing.

In the initial creation of this guide, six product testers covered hundreds of miles with the first round of socks. Since then, iRunFar’s team of regular gear testers and its buyers guide team members have been constantly testing running socks, and we periodically update this guide according to our testers’ feedback.

We tracked miles through various environments across the San Juan Mountains, Elk Mountains, and Front Range of Colorado, as well as mountains and deserts throughout Utah, Wyoming, Montana, and the scree-strewn slopes of Oregon’s Cascade volcanoes. We also took socks out in the notoriously rugged and wet conditions in the New Zealand backcountry. In addition to testing socks on shorter daily runs, we wore a number of the socks included in this guide during race and FKT efforts, including Western States, IMTUF, Hardrock 100, and Nolan’s 14.

We meticulously examined the socks throughout each run and ranked each sock on breathability, moisture transfer, cushioning, overall protection and comfort, and durability. A handful of socks scored high in many, but not all, traits, while others we tested didn’t make the cut.

Frequently Asked Questions About Running Socks

Should running socks be thick or thin?

The perfect amount of material in a running sock depends on personal preference, including a runner’s preferred footwear. Running shoes with a narrower toebox and more streamlined fit often pair best with lighter-weight socks like the Drymax Extra Protection Hot Weather Running 1/4 Crew Socks or the Stance Franchise UL Crew. Also, some runners’ feet swell in hotter conditions or during long-distance runs, so thicker socks can become too cumbersome. That said, the added warmth from a slightly thicker sock like the Lé Bent Zero Cushion 3/4 Crew Trail Sock is ideal in cooler running conditions.

It’s important to ensure your sock fits well and is neither too tight nor too bunchy. “Socks that are chronically too tight can cause joint and myofascial tension in the foot,” says Joe Uhan, a physical therapist, coach, ultrarunner, and regular contributor to iRunFar through his Stay the Course column. Uhan recommends natural fiber socks like the Smartwool Run Ankle Socks and a fit that doesn’t take effort to pull on or bunch up and cause irritation.

How long do running socks last?

The lifespan of running socks depends on many factors, including the quality and type of materials woven into the sock and how a runner uses the socks. All fibers break down over time from sunlight, moisture, oils of human skin, friction inside our running shoes, contact with brush and rocks, and wash-and-dry cycles.

Socks made of synthetic fibers, such as the Courier LoFi Sock, are generally more durable, stain-resistant, and longer-lasting than natural-fiber ones. The socks in this guide include entirely synthetic fibers or a natural and synthetic fiber blend, and none have lower-than-expected lifespans.

Additionally, following your socks’ laundering instructions can help them last longer. For instance, socks with terry loops will re-fluff when dried in a dryer, and their care instructions will note to tumble dry. Other socks, especially wool blends such as the Swiftwick Pursuit Quarter Crew High, which is 63% merino wool, shouldn’t be machine-dried because high heat affects the fiber integrity. The Feetures Elite Ultra Light Mini Crew above should be washed inside-out in cold water and hung up to dry. Also, using a harsh detergent can decrease a sock’s perceived functionality, as the detergent’s residue can reduce the sock’s breathability.

Wearing the proper size socks and trimming your toenails can also help reduce wear. Walking around inside or outside in socks without shoes on can also deteriorate the fabric. While we are elated when our run socks last two or three seasons, we’re not surprised if they’re barreled after one.

Should I wear compression socks for running and recovery?

Between runs, compression socks like the CEP Core Run 5.0 Tall Compression Socks can support blood circulation in a runner’s legs, which helps prevent and reduce swelling. Some evidence from the Cleveland Clinic, a premier academic medical center based in Cleveland, Ohio, also shows that compression socks worn during a run can positively impact performance on the athlete’s next run and aid recovery. Tall socks can also help protect the lower leg and ankles from shrubs, sunshine, rain, snow, or harsh wind.

Most importantly, if compression socks make you feel good during a race or on a run, adding them to your kit is likely a good idea. Compression socks should fit your feet and calves snugly but not feel too tight.

Again, physical therapist Uhan recommends wearing compression socks as needed and not spending too much time in very tight socks. He says, “Some compression, used intermittently and at times of acute/subacute injury, is useful, but constant compression will limit tissue (and fluid) mobility of all kinds. Key fascial layers that extend from feet upward to the trunk can get too tight and stiff with prolonged compression use.”

Compression socks feature a range of tightness levels from eight millimeters of mercury (mmHg) to 50 mmHg. Silhouettes made for runners, including the CEP Core Run 5.0 Tall Compression Socks, typically offer 20 to 30 mmHg. Such socks also generally feature graduated compression, meaning they are tightest at the ankle and become gradually looser further up the leg.

If you’re curious about compression socks, we recommend talking with your physical therapist or healthcare provider before investing. According to the Oklahoma Heart Institute, some people with diabetes can experience complications while using compression socks.

How do compression socks work?

Compression socks for running apply pressure to the lower legs, ankles, and feet to promote higher blood flow. This pressure usually varies, with a tighter squeeze around the ankle and less pressure around the calf. The graduated pressure helps increase blood flow between the legs and the heart, which can reduce swelling and improve the amount of oxygen and nutrients that can get to your muscles.

This may decrease fatigue, cramping, and swelling both during activity and afterward while you recover. Our testers loved the combination of attributes of the CEP Core Run 5.0 Tall Compression Socks and named them the overall best compression socks.

Should I wear special socks for cold and hot weather?

For the most part, it’s a matter of simple comfort. When you run in hot weather, it’s best to pull on your most breathable, moisture-wicking socks. When you run in cold weather, thicker socks that are still fairly breathable and moisture-wicking will be ideal. If precipitation occurs, choosing a pair that retains heat even when wet, such as socks with a natural fiber blend, like wool or alpaca, is a good idea.

We chose the Swiftwick Pursuit Quarter Crew High as our favorite wool-blend sock, and we were also impressed by the ability of the Feetures Elite Ultra Light Mini Crew to keep us cool when things got hot and warm when temperatures dipped.

A taller sock height is a good choice for cold weather. In hot weather, shorter socks are generally more comfortable, though choosing a sock cuff that’s so short it doesn’t stay fixed against the ankle can lead to the sock sliding down and bunching. Shorter socks also don’t protect against vegetation or rocks. Our favorite socks for cold weather are the Lé Bent Zero Cushion 3/4 Crew Trail Sock, and we love the Drymax Extra Protection Hot Weather Running 1/4 Crew Socks in warmer seasons.

Can socks help prevent blisters?

Friction while running — when a part of the foot rubs against another part of the foot or the socks and shoes you’re wearing — can cause blisters for a runner. Some runners experience blisters on their heels, while others find the painful nuisance on their toes or even the soles of their feet. Choosing socks and shoes that fit well — and fit well together — is important to prevent hot spots that become blisters.

If the hosiery has too much material or is too loose, the fabric can slip or shift, and repeated shifting and rubbing can cause a hotspot that develops into a blister. The snug fit and slight compression of the Swiftwick Flite XT Trail Mid-Crew can keep feet free from blisters by minimizing rubbing.

The sock fibers can make a difference, too. One of our sock testers experienced blisters directly under her forefeet caused by her socks during downhill sprints that day. They feature nylon (75%) and elastane (13%), and the bottom of the sock was too slick for the specific mechanics of the workout.

The best way to prevent horrible blisters is to take your socks out for a variety of shorter runs, from speedy sprints on flat paths to steep climbs and downhills, to ensure your feet and footwear operate well with that sock. And if you begin to experience hot spots or blisters, stop and address them immediately.

If you frequently get blisters between your toes, you might want to consider using a pair of toe socks, like the Injinji Run Lightweight Crew. Having material between our toes can keep them from rubbing together and creating hot spots. For some people, compression socks, like the CEP Core Run 5.0 Tall Compression Socks, that fit more snugly around the foot, reduce the chance of rubbing and blisters.

Morgan Wolf, Product Manager at Swiftwick, suggests finding socks that fit well and incorporate materials that work well for your feet. “For all runs, runners should look for moisture-wicking, well-fitted socks to prevent blisters, which are often caused by the combination of friction, pressure, and moisture. Socks, like shoes, are sized to your foot, and having an improper fit may lead to blisters, so make sure that the socks you choose are not too tight or too loose,” Wolf explains. “In addition, look for breathable, moisture-wicking fibers, such as olefin, which moves moisture away from your skin, greatly reducing the likelihood of chafing and overheating your feet.”

Finally, after choosing their favorite footwear and socks, some runners also apply powder lubricant to the inside of their socks or a gel lubricant like Body Glide or Squirrel’s Nut Butter to their feet before running. Dehydration and electrolyte imbalances may also contribute to blisters.

Read our in-depth article on blister care and prevention to learn more.

What’s the deal with toe socks?

Toe socks, where each of your toes gets its own little covering, have become increasingly popular in ultrarunning in recent years. Toe socks can help prevent blisters between the toes by putting a layer of fabric between them. The extra fabric also causes the toes to splay a bit more, which can increase toe engagement throughout the stride.

The Injinji Run Lightweight Crew socks are the best toe socks we’ve tested. Toe socks generally don’t work well for people with shorter- or longer-than-normal toes, as they either have excess material that causes bunching or create a web-footed situation. Most people wear toe socks as a standalone sock, though some people will double up on socks by putting a normal sock over a toe sock.

Call for Comments

Is there a pair of excellent running socks that has improved your runs? Share it in the comments below so we can consider it for future updates to this guide.

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