Best Insulated Jackets for Running of 2024

Cold temperatures are no reason to stop running outside, and having the best insulated jacket in your closet can keep you heading out the door in the coldest of temperatures. While plenty of runners get out in frigid climates where heavy jackets are needed to stay warm, we’ve focused this guide on jackets that will work for the more regular winter conditions that runners not living at extremely high elevations or latitudes experience.

If you’re running in weather anywhere from 20 degrees Fahrenheit and up, this guide is for you. We’ve also included a couple of jackets for those living and running in even colder climates. Our testers, based around the western U.S., including in the Pacific Northwest, Colorado mountains, and the high desert of the Colorado Plateau in Utah, took out nearly 20 insulated jackets to see which ones kept them warm through speed workouts that involved sweating, multi-day fastpacking trips, and recovery jogs through the neighborhood. The iRunFar team has decades of experience running in cold weather and understands the importance of a warm, insulated jacket when things get really chilly.

Our team, ready to run in all temperatures, turned to The North Face ThermoBall Eco Hoodie 2.0 for the freezing days when we still wanted to get outside. For days that were only just chilly, we regularly turned to the La Sportiva Koro Jkt and the Patagonia Nano-Air Light Hybrid Hoody.

For more background information about insulated jackets and the creation of this guide, see our buying advice, testing methodology, and frequently asked questions below the picks.

Best Insulated Jackets for Running

• Overall Best Insulated Jacket for Running: Montane Fireball Nano Hooded Jacket
• Best Lightweight Insulated Jacket for Running: La Sportiva Koro Jkt
• Best Medium-Weight Insulated Running Jacket: The North Face ThermoBall Eco Hoodie 2.0
• Best Hybrid Insulated Jacket for Running: Patagonia Nano-Air Light Hybrid Hoody
• Best Budget Insulated Jacket for Running: Decathlon Forclaz MT100 Hooded Synthetic Jacket
• Best Insulated Jacket for Fastpacking: Mountain Hardwear Ghost Whisperer/2 Hoody

Best Overall Insulated Jacket for Running: Montane Fireball Nano Hooded Jacket ($240)

Pros:

• Strategically placed body mapping insulation
• Compressible

Cons:

• Runs a bit small

The Montane Fireball Nano Hooded Jacket is an exceptionally versatile jacket that will perform when temperatures drop. Designed to be as breathable as possible, it only has insulation around the core, and the outer layer, including the sleeves and hood, is made of Featherlite air nylon stretch material. The Dynamic Eco insulation is quite warm for the weight. The design of this jacket keeps it relatively light for an insulated jacket, and it also helps minimize the chance of sweating through it. The adjustable hem and elastic on the cuffs trap heat, and two hand pockets are there if you need to carry small items or just warm cold hands up in the middle of a run. The pockets also serve as a stuff sack, making it easy to store this jacket in a pack when not in use.

We recommend this jacket for those cold days with minimal chance of precipitation. The fabric is stretchy and comfortable, and we found that the insulation was placed exactly where we needed it. This jacket is excellent for fastpacking because of its minimal weight and versatility. We named it our best lightweight insulated running jacket in our best running jackets guide, and it also earned top honors in the insulated jacket category in our best mountain running gear guide.

Our testers found that this jacket’s fit was slimmer than others tested, so if you plan to add more layers underneath, it could be worth sizing up.

Shell material: 90% Featherlite Air nylon, 10% Polyurethane | Insulation material: Recycled 40 grams/meter² Dynamic Eco Insulation

Shop the Montane Fireball Nano Hooded Jacket

Best Lightweight Insulated Jacket for Running: La Sportiva Koro Jkt ($139)

Pros:

• Reasonable price point
• High breathability

Cons:

• Boxy fit

If your runs take you high in the mountains in the shoulder seasons or you get out consistently during the winter months, you understand the importance of having a warm jacket on hand. The La Sportiva Koro Jkt is a hybrid insulated jacket that sets itself apart from others with its balance of warmth and breathability, and we featured it in our best running jackets guide and best winter running jackets guide. This was the jacket Eszter Horanyi carried on her scouting missions before setting an unsupported FKT on the Nolan’s 14 line through the high mountains of the Sawatch Range in Colorado. With pre-dawn starts for many of the scouting days, she appreciated the extra warmth the jacket provided and its ability to stash into a pack once the sun came out.

Environmental concerns surrounding the clothing we use for running are coming to the forefront of the industry, and La Sportiva made this jacket entirely from recycled materials, including the insulation, which is a blend of Primaloft ThermoPlume and polyester. The front insulated portion of the jacket blocks wind and traps warmth exactly where you need it. Stretchy fabric makes up the rest of the jacket, including the hood. The strategic insulation placement maximizes the breathability of the jacket while still keeping your core warm. The PFC-free DWR coating provides water resistance if you get caught in a shower. Two hand pockets and two internal pockets are perfect for holding smaller items you might need on your run.

Many clothing items from La Sportiva have a slimmer European cut than many of their American counterparts, so be sure to check the sizing chart. If you want to have the option of wearing extra layers underneath or are simply after a slightly roomier fit, you may want to size up. Some of the color schemes of these jackets are also very bright, which may not appeal to everyone.

Shell material: Polyamide and elastane | Insulation material: Primaloft ThermoPlume; 100% recycled polyester

Shop the Women's La Sportiva Koro JktShop the Men's La Sportiva Koro Jkt

Best Medium-Weight Insulated Running Jacket: The North Face ThermoBall Eco Hoodie 2.0 ($240)

Pros:

• Lightweight
• Warm for the weight

Cons:

• Too warm for all but very cold runs

Made with 100% recycled materials and a perfluorinated compound (PFC)-free durable water repellent (DWR) coating, The North Face ThermoBall Eco Hoodie 2.0 is a lightweight and warm synthetic jacket that, along with its predecessor, has been a favorite amongst the iRunFar crew for many years. In fact, it’s been in our best running jackets guide for a long time.

Light and small, it’s packable as a just-in-case jacket for remote mountain runs and an excellent option for multi-day fastpacking trips where you’ll encounter wet weather. The cut is relatively slim, and we had no issues fitting it under a rain jacket when conditions took a turn for the wet. The synthetic insulation kept us warm, even when it got damp from sweat or from moisture coming from the sky.

Two zip hand pockets easily store small items and keep your hands warm. The entire jacket also stuffs into these pockets for easy storage when you’re not using it. The secure chest pocket will hold any small running essentials ranging from chapstick to nutrition.

The women’s version of this jacket is cut relatively slim compared to similar jackets, but it comes in plus-sizing options to accommodate a variety of body shapes and sizes.

Shell material: 20-denier 38-gram/meter² 100%-recycled nylon with a non-PFC DWR finish | Insulation material: 11-gram/foot² ThermoBall Eco 100% post-consumer recycled polyester

Shop the Women's The North Face ThermoBall Eco Hoodie 2.0Shop the Men's The North Face ThermoBall Eco Hoodie 2.0

Best Hybrid Insulated Jacket for Running: Patagonia Nano-Air Light Hybrid Hoody ($299)

Pros:

• Great breathability
• Lightweight

Cons:

• Expensive

The Patagonia Nano-Air Light Hybrid Hoody is a top choice for high-effort running in cold weather and lower-intensity jogs when it’s just chilly out. Hybrid insulated jackets are designed to maintain a comfortable internal climate by trapping warmth where you need it and releasing excess heat and moisture from other areas of the body. This balance can keep you warm, dry, and comfortable. The lightly insulated style of hybrid jackets makes them a favorite amongst the iRunFar team.

The synthetic insulation is located strategically throughout the jacket. The polyester shell is highly breathable, and the synthetic insulation keeps you warm even if it gets damp from sweat or a drizzle. The non-insulated parts of the jacket feature Patagonia’s R1 knit paneling, which is highly breathable and quick-drying. Since there isn’t insulation on the back of this jacket, it is more comfortable to wear a running vest without worrying about sweat buildup. The hood is easy to deploy and remove, and the jacket has two zip hand pockets. These features landed this jacket in our best running jackets and best winter running jackets guides.

Patagonia remains committed to supporting environmental causes. The shell is made of 100% recycled polyester, and a PFC-free DWR coating helps it shed water. The insulation is 93% recycled polyester. Patagonia makes this jacket in a Fair Trade Certified factory, and the company is part of the 1% for the Planet program, donating a portion of its profits to organizations working with environmental conservation.

Shell material: 100% recycled polyester ripstop with a PFC-free DWR finish | Insulation material: 93% recycled 40-gram FullRange polyester

Shop the Women's Patagonia Nano-Air Light Hybrid HoodyShop the Men's Patagonia Nano-Air Light Hybrid Hoody

Best Budget Insulated Jacket for Running: Decathlon Forclaz MT100 Hooded Synthetic Jacket ($70)

Pros:

• Affordable
• Warm

Cons:

• Too warm for all but very cold runs

Insulated jackets can carry quite a price tag, but the Decathlon Forclaz MT100 Hooded Synthetic Jacket is a quality jacket at a very reasonable cost. A relatively warm insulated jacket ideal for running in sub-freezing temperatures, we also loved it as an everyday-wear option. The insulation is recycled polyester, and the shell is made of a 20-denier polyamide and treated with a water-repellent finish. It’s ready to shed light moisture, and you don’t have to worry about the synthetic insulation losing its warmth if it gets wet.

The insulated hood provides warmth, and the draw cord on the hem adjusts the fit and allows you to seal in warmth when it’s cold. Two hand pockets provide storage, and the jacket easily stuffs away into one of them so that you can easily carry it in your pack when not in use.

This jacket tends to run a bit smaller than others, so it’s worth considering sizing up, especially if you plan on wearing more than one layer underneath it. This is definitely one to check the sizing chart on before purchasing. This jacket’s value led us to include it in our best winter running jackets guide.

Shell material: 20-denier polyamide | Insulation material: Recycled polyester

Shop the Women's Decathlon Forclaz MT100 Hooded Synthetic JacketShop the Men's Decathlon Forclaz MT100 Hooded Synthetic Jacket

Best Insulated Jacket for Fastpacking: Mountain Hardwear Ghost Whisperer/2 Hoody ($360)

Pros:

• Very light for its warmth
• Compressible

Cons:

• Expensive
• Down insulation isn’t warm when wet

Many runners avoid down jackets because the insulation loses its warmth if it gets wet, but we believe their light weight and packability give them a place in the fastpacking world. The Mountain Hardwear Ghost Whisperer/2 Hoody is a very warm jacket for its weight, and it compresses down incredibly small in a pack. Multiple iRunFar testers choose this jacket for fastpacking trips, even those with rain in the forecast. While you do have to be more careful to keep from sweating through a down layer and protect it from moisture if it starts to rain, the extra attention you give to safeguard the down is worth the weight and bulk savings in your pack.

This jacket has an outer shell of 10-denier ripstop nylon with a DWR finish for water resistance. The 800-fill down insulation is Responsibly Sourced Down (RDS)-certified. The jacket packs down into one of the two hand pockets for storage, and zippers on them can keep small items secure.

The hood liner and the cuffs are elastic for improved fit and heat retention. The final baffles on each wrist, an area often seeing higher levels of sweat, are filled with synthetic insulation instead of down, so they stay warm even if damp.

While some will argue that synthetic jackets are a better option for running, the specific needs of gram-counting fastpackers bring down jackets into the discussion. Because this jacket packs a lot of warmth for the weight, we’ve also included it in our best running jackets guide.

Shell material: 10-denier ripstop nylon with a DWR finish | Insulation material: 800-fill RDS-certified down insulation

Shop the Women's Mountain Hardwear Ghost Whisperer/2 HoodyShop the Men's Mountain Hardwear Ghost Whisperer/2 Hoody

Comparing the Best Insulated Jackets for Running

JACKET	PRICE	SHELL MATERIAL	INSULATION MATERIAL
The North Face ThermoBall Eco Hoodie 2.0	$240	20-denier 38 gram/meter² 100%-recycled nylon with a non-PFC DWR finish	11 gram/foot² ThermoBall™ Eco 100% post-consumer recycled polyester
La Sportiva Koro Jkt	$139	Polyamide and elastane	Primaloft ThermoPlume; 100% recycled polyester
Montane Fireball Nano Hooded Jacket	$240	Featherlite Air nylon, Polyurethane	Recycled 40 grams/meter² Dynamic Eco Insulation
Patagonia Nano-Air Light Hybrid Hoody	$299	100% recycled polyester ripstop with a PFC-free DWR finish	93% recycled 40-gram FullRange polyester
Decathlon Forclaz MT100 Hooded Synthetic Jacket	$70	20-denier polyamide	Recycled polyester
Mountain Hardwear Ghost Whisperer/2 Hoody	$360	10-denier ripstop nylon with a DWR finish	800-fill RDS-certified down insulation

Choosing an Insulated Jacket for Running

Some of the best insulated jackets for running, like one of our favorites, the Patagonia Nano-Air Light Hybrid Hoody, are generally reserved for some of the coldest of winter runs and often end up being multi-purpose garments for people who wear them not only for running but also for hanging out at trailheads, camping, and as an everyday jacket during the winter. Choosing the right jacket for your specific needs is important, especially since they tend to be on the pricier side of running apparel. There are several jacket features to consider when selecting the right one for you.

Fit

Insulated jackets keep you warm by trapping air in the insulation. These air pockets reduce energy transfer between your body and the surrounding air. Having a jacket that’s too big can lead to big air gaps between your body and the jacket, allowing cold outside air to move between the jacket and your body, whisking away heat. This completely defeats the thermodynamic principles that enable an insulated jacket to keep you warm. Insulated jackets should fit snugly but not tightly, especially if you’re not wearing many layers underneath. A jacket like The North Face ThermoBall Eco Hoodie 2.0 has a slimmer cut, which can be useful for retaining warmth.

Be sure to think about the type of layering system you use for winter runs before choosing a jacket that may end up being too small. A jacket that fits too tightly will not only be uncomfortable and limit your range of motion, but it will also compress the insulation, which can make it less effective at keeping you warm.

An insulated jacket should allow you to have a full range of motion with your arms and not move around on your body through the various stages of arm swing. It should also be long enough that when you reach your arms to the sky, or you bend over to pick something up, it doesn’t leave your mid-section or back exposed.

Weight

As with all pieces of running gear, weight is important. Since even the best insulated jackets for running tend to be one of the heavier pieces of clothing in a running wardrobe, it’s worth looking at the gram scale when choosing one.

Synthetic insulation is heavier and less compressible than down insulation, so opting for a down jacket instead of one with synthetic insulation may be tempting. We generally recommend against this in most situations since down loses its insulative properties as it gets damp because the down feathers clump together and can’t maintain their air pockets anymore. As runners who often partake in vigorous exercise, we sweat, and this moisture can turn a down jacket into dead weight if you sweat through it. That said, several iRunFar team members choose to take down jackets, like the Mountain Hardwear Ghost Whisperer/2 Hoody, on fastpacking trips to save weight and are careful about removing them before they start to sweat.

Insulation Type

The two main types of insulation used in jackets are down feathers and synthetic fill. For running, synthetic fill is generally the smarter, albeit heavier and bulkier choice. Synthetic fill is generally made of polyester that mimics the heat-trapping properties of down. And while plastic isn’t nearly as efficient at catching heat as nature-created feathers, it has its advantages, including not being an animal product. Synthetic insulation can be made more environmentally friendly by coming from recycled products. Most of the best insulated jackets for running, including many in this guide, are made with recycled insulation.

Down comes from goose or duck feathers. If purchasing a down jacket, it’s important to ensure that it’s Responsible Down Standard-certified so that it comes from animals treated as humanely as possible. The only down jacket in this guide is the Mountain Hardwear Ghost Whisperer/2 Hoody, which we recommend more for fastpacking applications than traditional running ones.

Shell Material

Most insulated jackets have a polyester or nylon shell treated with a durable water-resistant (DWR) coating to help it repel light moisture. Even with a DWR coating, insulated jackets generally falter in heavy precipitation and soak through easily. Synthetic insulation stays warmer than down when wet, but it’s still better to keep it dry whenever possible. There are insulated jackets that are fully waterproof, but they tend to be heavy and too much jacket for most running situations.

In hybrid insulated jackets, the insulated area features one material, while the rest may be made from an entirely different material. For example, the Patagonia Nano-Air Light Hybrid Hoody has a polyester shell over the insulated part of the jacket, and the rest is Patagonia’s R1 knit fabric.

Breathability

A jacket’s breathability depends on its insulation and shell materials and becomes an increasingly important factor to consider as temperatures drop — the best insulated jackets for running need to breathe well. The La Sportiva Koro Jkt was notable for the breathability of its materials. While sweating through a shirt on a pleasant day out probably doesn’t have many negative consequences, aside from a little discomfort, sweating through your insulation layers on a cold day can result in disaster. Many runners have found themselves in an uncomfortable situation in a wet base layer or jacket when the sun dips behind the horizon and temperatures drop. Because insulated jackets are inherently warm, paying close attention to your temperature regulation when wearing them is important. If you start to sweat, either slow your effort, unzip the jacket, or remove it completely to keep your base layer as dry as possible.

Sustainability

Sustainability has become an increasingly important factor for many people considering clothing purchases. Many companies have moved toward using recycled materials in both their jacket shells and insulation.  Most outdoor brands use RDS-certified down in their jackets to ensure that ducks and geese are treated as humanely as possible while their feathers are harvested.

One of the significant advancements in jacket technology has been the gradual elimination of perfluorinated compounds (PFC) in DWR coatings. Older DWR coatings used these fluorine-containing compounds, an environmentally harmful material that does an excellent job repelling water due to its hydrophobicity. While the compounds used in traditional DWR coatings historically haven’t been considered harmful to humans when used as a coating, the byproducts of the manufacturing process, such as perfluorooctanoic acid (PFOA), are highly toxic and difficult to dispose of safely. Luckily, technological advances have found equally effective ways to make a material water-resistant without PFCs. The Patagonia Nano-Air Light Hybrid Hoodie and La Sportiva Koro Jkt use PFC-free DWR finishes.

Why Trust Us

The team at iRunFar doesn’t slow down when winter arrives, and we’ve taken the time to search the market for the best insulated jackets for running. We looked for jackets with high-quality insulation that would keep us warm even if we got sweaty, breathe well, and stand up to the test of time. The jackets in this guide consist of time-tested team favorites, some of which have been in our closets and packs for years, and some new jackets that push the limits of the warmth-to-weight ratio.

Our team evaluated each jacket on various factors, including fit, durability, style, warmth, and breathability. We understand the importance of having a warm and trusted jacket, whether running in your neighborhood or on a remote mountain ridgeline in the winter, so we took the jackets through as many conditions, from cool to downright frigid, to see how they performed. Whether going out for a chilly morning run or a multi-day fastpacking trip through the San Juan Mountains of Colorado, we had an insulated jacket in tow.

Frequently Asked Questions about Insulated Jackets for Running

What are the differences between synthetic and down insulation?

Down insulation is made out of the feathers of geese and ducks. Down is the more traditional option for everyday insulated jackets and has a very high warmth-to-weight ratio, higher than synthetic insulation. The feathers create air gaps between them that trap heat and prevent energy exchange between your warm body and the cold outside air. Down also compresses smaller than synthetic options and has a longer lifespan if properly cared for. Unfortunately, down doesn’t play well with moisture, and when the feathers get wet and clump up, it loses most of its insulating properties. You can tell the warmth of a down jacket by its fill power and fill weight. Higher-quality down has a higher fill weight and a better warmth-to-weight ratio. Fill weight will tell you how much down is in the jacket. Higher numbers of both will indicate a warmer jacket. If purchasing a down jacket, you’ll want to ensure you get one with Responsible Down Standard (RDS)-certified down.

Synthetic insulation is generally made from polyester that mimics the same air- and heat-capturing properties of down feathers. It tends to be bulkier than actual down with a lower warmth-to-weight ratio. But since it stays warm when wet, it is a superior option for running jackets. While synthetic insulation doesn’t use animal products, which is important to many people, it is made of plastic. Companies have been reducing the environmental impact of their synthetic insulated jackets by using recycled materials, and nearly every jacket in this guide, including the Patagonia Nano-Air Light Hybrid Hoody, La Sportiva Koro Jkt, and the The North Face ThermoBall Eco Hoodie 2.0 feature some recycled materials.

Is synthetic insulation or down better for running?

Runners tend to sweat, which needs to be considered when choosing layers, including jackets. Unless you’re careful not to sweat into a down jacket, which is often easier said than done, a synthetic insulated jacket is a better option. It’ll maintain its insulating properties even if damp and provide more warmth if you get caught out in an unexpected rainstorm. Our team loves hybrid insualted jackets like the Patagonia Nano-Air Light Hybrid Hoody for running.

How should I layer while running with an insulated jacket?

Insulated jackets are generally only used for runs in cold temperatures. The outside temperature, the type of running you’re doing, and how hot your body naturally operates all factor into the layering system underneath a down jacket.

Having layers on underneath a jacket makes it easier to control body temperature. You can add and remove layers as effort levels and temperatures vary throughout a run. A hybrid insulated jacket like the Patagonia Nano-Air Light Hybrid Hoody allows flexible layering options.

A good starting point for layering is a quality base layer that breathes well so that it doesn’t get clammy and wet. Any additional layers on top of that are a matter of personal preference. You can learn more about choosing gear for cold-weather running using our best cold weather running gear guide.

Are there warmth ratings for jackets?

Down jackets measure warmth in both fill weight and fill power. Fill power measures the quality of the down. Higher fill power means the down will have more loft and a higher warmth-to-weight ratio. Fill weight is the amount of down that goes into a jacket. A higher fill weight also leads to a warmer jacket. The Mountain Hardwear Ghost Whisperer/2 Hoody is an 800-fill-power jacket, which means it uses down on the higher end of the quality spectrum.

The warmth of synthetic insulation is measured in grams per square meter (gsm). As with down insulation measurements, the higher the number, the warmer the jacket will be.

Call for Comments

• Do you frequently run in weather that requires an insulated jacket?
• Do you have a favorite insulated jacket that didn’t make our list?

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