We understand if you’re wary of a winter coat that costs nearly a grand, but the Arc’teryx Therme Down Parka ($900) largely justifies its lofty price tag. This is a deep-winter-worthy jacket that can fend off breath-stealing cold and driving snow with aplomb, all while granting the wearer a sleek, fashionable aesthetic. It’s not perfect—we’d tweak its pocket and hem design, and it requires some breaking in—but the Therme is a great pick for bitter conditions that might overwhelm inferior competitors.
Warmth
Comfort
Weather Protection
Storage
Durability
Sustainability
Weight
2 lb. 11.6 oz.
Insulation
750-fill down + synthetic
Waterproofing
2-layer Gore-Tex ePE
Back Length
34 in.
Pros
Cons
Arc’teryx Therme Down Parka
For this season's top models, see our guide to the Best Men's Winter Jackets.
I live in Fairbanks, Alaska, which means that I got to test the Arc’teryx Therme Down Parka in some of the most frigid conditions in the entire country. That included two weeks when the temperature ranged from -50 degrees to -30 degrees—that’s bone-chilling cold, the kind that would leave you sprinting for the nearest shelter if you didn’t have insulation that was up to the task.
Thankfully, the Arc’teryx Therme Down Parka is one of the warmest parkas I’ve worn while not on a big-mountain expedition. Its generous complement of 750-fill down (augmented by moisture-resistant synthetic insulation in the hood and other strategic areas) completely sealed out the cold; not once did I feel my body heat dissipating from this parka. At more than 2.5 pounds, the Therme is a whole lot of jacket, but I was grateful for every ounce when I stepped out into the Alaskan winter.
As with many jackets of this quality and princely price, the small details help boost the Therme’s winter worthiness. The adjustable hood completely protected my face, head and neck, while the stretch-knit cuffs stonewalled the wind when I wasn’t wearing gauntlet-style gloves. The only gripe I have is that its thigh-length hem (which, to be fair, does provide a lot of coverage) was sometimes drafty as I walked, as it lacks a hem cinch. On the absolute coldest days, that lessened the jacket’s impervious feeling a bit. Still, the Therme is right up there with the category’s warmest men's winter jackets, such as the Fjallraven Expedition and the Patagonia Stormshadow.
The Therme feels like a weighted blanket, in the best kind of way. Its quilted nylon interior is quite cozy, even when I was wearing just a lightweight shirt or base layer underneath. The fabric felt good against my arms, and the quilted material continues up into the hood as well, causing it to feel comfy even when fully zipped (the same goes for the jacket’s collar).
A knock against the Therme’s comfort—if only a slight one—is the stiffness of its outer shell. The heavy, canvas-like 200-denier nylon fabric is great for durability and for aiding in the jacket’s fight against the elements, but it causes the Therme to require a bit of a break-in period. This isn’t a soft, supple puffy; it felt restrictive for the first couple of weeks I wore it, requiring a bit of effort to use the pockets and the zipper. However, once the jacket began to relent a little, I didn’t mind the fabric’s feel or the overall bulk as much.
Arc’teryx designed the Therme with 2-layer Gore-Tex ePE. That’s the same waterproofing as in the Stormshadow (albeit with nylon face fabric rather than the latter’s polyester), and it’s pretty much the most waterproof construction you’ll find in a casual insulated winter jacket. This coat is a fortress against the weather: It performed flawlessly on cold, snowy days, on which the shell shed moisture with ease, and the hood provided complete protection without sacrificing visibility. I was especially grateful for the hood’s coverage for cutting the wind, which can be brutal when the temperature is already -40.
Because I was testing the Arc’teryx Therme Down Parka in such arctic conditions, I never got a chance to use it in warm, wet snow or rain. But the Gore-Tex build should be bombproof if you encounter such weather (although if it’s warm enough to rain, you might be roasting a bit given the jacket’s insulation). Overall, the only reason I’m not awarding a perfect score in this category is the aforementioned lack of a hem cinch, which can expose your waist and torso to wind.
The pocket layout on this jacket is ample and (mostly) smartly designed. The Therme has six pockets: two large external cargo pockets, two lined hand pockets, an exterior chest pocket, and an interior chest compartment. I stored my iPhone in the zippered interior pocket for security and warmth, while the exterior chest compartment usually held my glasses. The cargo pockets came in handy for stashing extra gloves, or perhaps my wallet when needed.
In general, I found all of the pockets well-placed. I was left to wonder, however, why Arc’teryx didn’t insulate the hand pockets—instead of integrating them into the Therme’s ultra-warm design, they rely only on a soft lining for comfort. I ended up keeping hand warmers in those pockets on the coldest days, which was a tad annoying given the rest of this jacket’s build.
Although the Therme’s thick, canvas-like shell makes it feel stiff out of the box, it grants impressive toughness. The 200-denier nylon material emerged completely damage-free from my two months of rigorous winter testing, which included some, shall we say, extracurricular activities. In addition to the usual litany of winter scenarios—bringing in wood for the fireplace, sled runs with my son, helping folks get their car going at 50-below zero—I may have gotten in the habit of using it as an insulated ground tarp for changing layers or footwear at winter trailheads.
After all that, the Arc’teryx Therme Down Parka has not shown any wear and tear. If anything, all the use has made it even more comfortable to wear by breaking down the fabric’s initial rigidity. Plus, all of the jacket’s hardware—zippers, cinch pulls, and snaps—continues to work flawlessly. You’d hope everything would hold up this well over time given how much the Therme costs, but it’s still gratifying to see its durability in action.
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Longevity
Choosing durable outdoor gear and keeping it in use for longer is one of the best ways to reduce environmental impact. Our proprietary longevity rating assesses factors like overall build quality, materials, fabric denier, component durability, and real-world performance. A green check indicates that we expect the product to be long-lasting relative to its peers, a yellow check mark indicates average longevity, and a red X indicates a product that may have a limited lifespan.
Recycled Materials
Recycled materials are prevalent in outdoor gear, with nylon, polyester, wool, and down among the most common, but the composition varies widely. A green check mark indicates the product is made with a substantial amount of recycled materials (100% recycled or the core fabric that makes up most of the product is recycled), a yellow check means it contains a moderate to small amount of recycled materials, while a red X means there are no recycled materials in the product.
Bluesign Approved
Bluesign Technologies, based in Switzerland, operates a third-party textile management system that ensures materials are manufactured to strict environmental, chemical, and worker safety standards. A green check mark indicates a product is either a Bluesign Product (contains at least 90% Bluesign-approved fabrics and 20-30% Bluesign-approved accessories) or features a significant amount of Bluesign-approved materials. A yellow check mark means it uses some Bluesign-approved materials but less than the aforementioned category, and a red X means there are no Bluesign-approved materials in the product.
PFAS-Free DWR
Durable water-repellent (DWR) finishes can contain PFAS (per- and polyfluoroalkyl substances). These highly persistent “forever chemicals” are used in outdoor gear for their strong resistance to water, oil, and heat, but are linked to environmental contamination and a range of health concerns. A green check mark indicates the product uses a PFAS-free DWR, while a red X means the DWR contains PFAS.
PFAS-Free Waterproof Membrane
The membranes used in waterproof products such as rain jackets, ski jackets, and shoes can contain PFAS (per- and polyfluoroalkyl substances). These highly persistent “forever chemicals” are valued for their resistance to water, oil, and heat, but are linked to environmental contamination and a range of health concerns. A green check mark indicates the product’s waterproof membrane is PFAS-free, while a red X means it contains PFAS.
Responsible Down
The Responsible Down Standard (RDS), developed by Textile Exchange, is the leading certification for responsibly sourced down and uses third-party audits throughout the supply chain to verify animal welfare, responsible farming practices, and safe working conditions. Recycled down is another responsible choice that helps reduce demand for newly sourced down while keeping existing materials in circulation. A green check mark indicates a product uses responsibly sourced or recycled down, a yellow check mark indicates the brand sources responsible or recycled down for the majority of its products but does not specify it at the product level, and a red X indicates the product does not use responsibly sourced or recycled down.
Responsible Manufacturing
This criterion evaluates a brand’s commitment to fair wages, safe working conditions, and reducing environmental impact through certifications and programs like Fair Trade Certified, Fair Wear Foundation, Worldwide Responsible Accredited Production (WRAP), and the Fair Labor Association, while also recognizing brands that manufacture primarily in the U.S. or Europe under strict labor and environmental regulations. A green check mark indicates a brand meets our responsible manufacturing criteria, while a red X means it does not.
Recycled and/or Reduced Packaging
Packaging can add significant waste to outdoor gear purchases, so many brands work to reduce its impact by using recycled materials, incorporating Forest Stewardship Council-certified paper products, and minimizing plastic and paper use. A green check mark indicates a brand uses recycled or reduced materials across all of its packaging, a yellow check indicates moderate or limited use of recycled or reduced packaging, and a red X indicates the brand does not make either of these efforts.
Repair Services
Repair services extend the lifespan of outdoor gear and reduce overall consumption, though programs vary widely. Some brands offer comprehensive repairs for a range of issues, while others provide limited or no repair support. A green check mark indicates a robust repair program, a yellow check mark indicates limited repair services, and a red X indicates the brand does not offer repair services.
Resale and/or Recycling Services
Resale and recycling programs help keep outdoor gear in circulation longer and out of landfills, ranging from trade-in resale platforms that offer store credit to take-back initiatives that recycle products at the end of their usable life. A green check mark indicates a brand offers both resale and recycling programs, a yellow check mark indicates it offers one of the two, and a red X indicates it offers neither.
Carbon Footprint Tracking
This criterion evaluates whether a brand measures, reports, and works to reduce its greenhouse gas emissions using established frameworks such as the Higg Index, Greenhouse Gas Protocol, or The Change Climate Project. A green check mark indicates a brand publicly reports greenhouse gas emissions data, sets clearly defined reduction targets, and uses established tracking frameworks such as Higg or The Change Climate Project. A yellow check mark indicates the brand tracks emissions and outlines reduction goals but provides limited data, lacks science-based verification, or does not clearly report progress. A red X indicates the brand does not appear to track greenhouse gas emissions or provides so little information that its efforts cannot be verified.
Annual Impact Report
Annual impact reports provide transparency and accountability by outlining a brand’s sustainability efforts across areas such as material sourcing, greenhouse gas emissions, waste, water use, supply chains, and packaging. A green check mark indicates a brand publishes a detailed, brand-specific impact report that closely aligns with our sustainability criteria and leaves little room for ambiguity. A yellow check indicates a brand provides some relevant sustainability reporting but lacks detail in key areas or is covered only briefly within a parent company report. A red X indicates a brand does not regularly publish an impact report.
The Therme features a synthetic-insulated hood that works well with or without a hat underneath. I found the hood’s fit to be just right and comfortable on cold, breezy days, when it protected my face. The hood cinch nicely pulls back the material to improve fit and field of view.
The parka’s burly sleeves end in elastic cuffs that seal off your wrists well. They effectively keep the cold from working its way into the jacket when you’re wearing small (i.e., non-gauntlet) gloves. I also found the Therme’s main zipper robust and easy to operate, even when I was wearing gloves; the fact that it’s a two-way zipper and protected by a snap-down storm flap only adds to the appeal.
Tester: 5'10", 175 lb.; 32" waist
Size tested: Medium
I’m of average build and usually wear a men’s medium in winter jackets. The Therme in that size proved to be a perfect fit, and the sleeves, hood, and hem all fell where they needed to. However, this is a big, bulky parka, so you shouldn’t expect it to be form-fitting. I also think a little taper towards the bottom would help with the updraft problem caused by the lack of a hem cinch.
Patagonia Stormshadow Parka ($899): A Premium Parka Rival
Along with the Therme, the Stormshadow Parka is about as good as it gets when it comes to warm, protective winter jackets. It’s also priced the same, so you’ll be paying through the nose for the privilege of staying cozy and dry—but, as with the Therme, the Stormshadow won’t budge in the face of gnarly conditions. Its 9.1 ounces of 700-fill down is just slightly less lofty than the Therme’s stuffing, but the Stormshadow makes up for that with a softer build that’s more comfortable off the rack. (Be aware, though, that its 75D polyester shell might not be able to take as much abuse as the Therme’s 200D nylon.) Both jackets feature 2-layer Gore-Tex waterproofing, and both are great pieces; choosing your preferred pocket layout might be the dealbreaker here. For more, read our review of the Patagonia Stormshadow Parka.
The North Face McMurdo Parka ($450): Don’t Blow Your Budget
If you want a waterproof, thigh-length parka that won’t set you back almost $1,000, look to the McMurdo. It’s not quite as warm as the Therme, but this classic jacket still contains enough 600-fill down to keep its wearer toasty in temperatures down to about 10 degrees. The McMurdo also boasts 2-layer waterproof construction, in this case The North Face’s DryVent material; again, that’s not quite on par with Gore-Tex, but it also helps keep the price (way) down. This parka has a busier look than the sleek Therme, and we gather that some folks aren’t huge fans of the removable faux-fur hood, but the McMurdo will still get the job done in wintry conditions, while leaving room in your budget for other winter goodies. For a deeper dive, read our The North Face McMurdo Parka review.
If you want one of the warmest, most protective jackets available, the Therme Down Parka is an apotheosis of the form. With 2-layer Gore-Tex and plenty of 750-fill down, it can fend off the worst winter has to offer. However, you’ll be paying much more than a pretty penny for it, and it has a couple of annoying design quirks.
Warmth
Comfort
Weather Protection
Storage
Durability
Sustainability
The Stormshadow Parka ranks among the top jackets we tested in terms of warmth and weather protection. With that high performance comes an extremely high price tag, although you probably won’t be complaining once you put on this well-made coat.
Warmth
Comfort
Weather Protection
Storage
Durability
Sustainability
The McMurdo might look like the classic “city slicker” parka, but it packs in plenty of performance. This is a warm, reliably protective jacket, but its heavy weight and stiff construction prevent it from reaching top-tier status.
Warmth
Comfort
Weather Protection
Storage
Durability
Sustainability
We’ll start this recommendation with a large caveat: If you don’t have $900 to spend and don’t need the absolute warmest, most waterproof model out there, there are winter jackets that can offer reasonable facsimiles of the Therme’s performance. However, if, like our Alaskan tester, you live in an unrelentingly harsh environment and want the best of the best, the Arc’teryx Therme Down Parka is a superb choice. It will help you navigate inhospitable conditions, and its natty design will have you looking good while doing it.
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