Arc'teryx Men's Thorium AR Jacket

Priced: $222.74 - $265.00 Rated:   - 5 stars out of 5 by 6 reviews.
Arc'teryx Thorium AR Jacket
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Color: Chili Pepper
Available Colors:
Arc'teryx Thorium AR Jacket -

The Arc'teryx Men's Thorium AR Jacket succeeds at giving you maximum warmth and versatility in a mid-layer while limiting weight. They have expertly mapped two different types of insulation across areas of need: Coreloft synthetic in moisture-prone zones (hem, collar, sleeves and underarms) and 750 fill down in the core and arms. With such mapping precision they should have called this the Rand McNally Jacket.... but Arc'teryx never listens to my jacket name suggestions. The DWR (Durable Water Repellent) finished exterior will shed some moisture so the Thorium AR can handle itself on its own, but really shines as an insulating layer under a shell.

FEATURES of the Arcteryx Men's Thorium AR Jacket.
SPECIFICATIONS of the Arcteryx Men's Thorium AR Jacket.


  • Athletic fit, hip length

Lining and Layers:

  • The Arc'teryx Thorium AR jacket layers easily and packs down small; stuff sack included


  • Collar height provides warmth layering easily


  • Light and durable shell fabric with Durable Water Repellent finish repels moisture
  • Synthetic Coreloft™ polyester fibers insulate even when damp; they're placed in areas such as underarms, hem and collar where moisture may build up
  • Zippered hand pockets; low-profile elasticized cuffs; adjustable hem drawcord
  • Hem cinch cord
  • DWR finish (Durable Water Repellent) helps bead water from fabric surface
  • Coreloft™ 80 g/m² insulation. Made with highly crimped multi-denier siliconized polyester yarn, this lightweight, breathable, and thermally efficient, 100% polyester staple fibre it is very compressible and has excellent loft retention.
  • Soft, durable face fabric withstands abrasion while DWR finish repels moisture
  • Hem drawcord adjusts to seal out drafts


  • Jacket offers 750-fill-power European goose down in the core and sleeves where warmth is needed most; down is extremely compressible and warm for its weight
  • Down Composite Mapping strategically places both down and synthetic insulation inside jacket

Weather and Wind:

  • Colibri™—40D nylon, lightweight, wind resistant mini ripstop taffeta with DWR coating
  • Full front zip with chin guard and wind flap


  • Two zippered hand pockets, stuff sack included in pocket
  • Corded zipper-pulls reduce noise and are easy to grab


  • Elastic cuffs

What's good for the goose is good for you, and Arc'teryx joins the feather-fete with its Thorium/Cerium family of jackets. The Men's Thorium AR Jacket is a durable, flexible piece combining goose down and Coreloft insulation to meet your winter outwear demands. Wear it to and from the office, hiking to the final summit of the season, or under a shell while blasting through waist-deep powder in single-digit sunshine. Regardless of how you spend your time, the Thorium jacket protects you from the cold, alone or under a hardshell.
Winter weather is not an equal opportunity attacker. Typically, precipitation is a vertically occurring event, and as such, your belly barely sees the action. Consequently, the designers at Arc'teryx put 750-fill European grey goose down in the torso, relying on the odds that you won't be prone when the blizzard hits. Likewise, the shoulders and collar are filled with Coreloft insulation, as those areas tend to shoulder the load of exposure when it comes to rain and snow. Because synthetic insulation resists water and dries quickly when wet, the strategic placement of both natural and synthetic insulators offer you the best chance of staying warm in the event of unexpected moisture.
The non-stretch Colibri mini-ripstop nylon is treated with DWR so when flying flurries or slushy rain lands on the jacket, the water beads up on the surface rather than being absorbed by the fabric. While you won't stay dry in a deluge, the water-resistant nylon outer provides time for you to find more forcible shelter. When you're packing for adventure, on the mountain or in Sweden for Vaffeldagen, space and weight matter. The one-two punch of synthetic and down insulation lightens the load, as this jacket only weighs a little over 12 ounces and crams into the included stuff sack with ease. Whether you sit at the 50-yard line in Buffalo, sled with your 5-year-old, or snowboard with your college buddies, the Thorium jacket keeps you warm, on its own or as a layer.
Loaded with more durability and versatility than you can shake a goose feather at, the Arc’teryx Thorium AR Jacket has all kinds of functionality on lockdown. It operates perfectly as a toasty mid-layer or even as a standalone coat. The reason for this is the Down Composite Mapping that strategically situates Coreloft insulation in the sectors that moisture is the most likely to build up. A core full of down feathers goes the extra mile to ensure that you stay nice and warm no matter how far the mercury has fallen. Just stay warm with the Arc’teryx Thorium AR Jacket.

Oregon Mountain Community
A no-nonsense piece, the Arc'teryx Thorium AR Jacket gets down to business and keeps you warm when the weather turns cold. An ideal lightweight down coat, the Thorium doubles as a midlayer when the air is frigid. Stay toasty this season in the durable Thorium AR.

Berg's Ski Shop
The Arc'teryx Thorium AR Jacket is a durable and versatile insulated jacket. Functioning as a warm mid layer or stand alone piece, the Thorium takes care of your core warmth in high tech style.

Arc'Teryx brings their signature design and craftsmanship to the world of down insulation. The Thorium AR jacket is a durable and versatile down insulated jacket that functions as a warm mid-layer or standalone piece. Down Composite Mapping strategically places Coreloft™ synthetic insulation in areas where moisture may buildup; down core gives maximum warmth.



The lightweight Arc'teryx Thorium AR down jacket uses strategically placed synthetic insulation in areas prone to moisture, keeping you warm with minimal weight and bulk.

Durable and versatile down insulated jacket that functions as a warm mid-layer or standalone piece.
Down Composite Mapping strategically places Coreloft™ synthetic insulation in areas where moisture may buildup.
Moisture- and wind-resistant outer face fabric.
, compressible, and packable.
Machine wash warm, tumble dry low.
Mountain Gear
Packable warmth, ideal for backcountry travel and climbing.
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Review RatingNumber of Reviews
Also available for: Women
Back length:Hip-length
Back length (in.):Unavailable
Closure:Full Zip
Clothing Fit:Trim Fit
Cuffs:Low profile elastic cuffs
Fabric:Nylon / nylon blend
Fabrics/Materials:Colibri 100% nylon
Fit:Athletic, hip length
Insulation:750 fill European goose down (85 g) / Coreloft 80 and 140 insulation (80 g/m2 and 140 g/m2)
Insulation Material:750 Fill Down
Insulation Type:Down
Length:28 in
Material:Colibri 40D Nylon
Pockets:Two zip hand pockets
Shell:Colibri™ 40D nylon, lightweight, wind resistant mini ripstop taffeta with DWR coating
Shell fabric:Nylon
Shell lining fabric:Nylon
Sleeve Length:36 in
Type of Waterproofing:DWR
Weatherproof Material:Colibri
Weight:12.7 oz / 360 g
Compare specifications to related products.

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Arc'teryx Thorium AR Down Jacket X-LargeArc'teryx Thorium AR Down Jacket X-Large$265.00

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Arc'teryx Thorium AR Jacket Reviews:


Arc'teryx is dangerous to your wallet

Had a tough time deciding between the hooded version and this one. I decided this one would be better because it's a little more casual and can be worn around the office. If needed, I'll put on a beanie.

So far, I've only tested it in lower 40's in wind/rain (live in Seattle). In these conditions, I absolutely love it. I feel "room temp" when wearing it. Never too warm or too cold. I have a giant North Face down jacket as well that I'm always too hot in. This one has a nice balance.

Another thing I like about this one compared to other down jackets out there is that it doesn't have that odd shiney look.

I now own two Arc'teryx products. I'm blown away by the quality of Arc'teryx and while it costs a lot, I feel that it's so well made that it last a while. I high recommend this for anyone looking for warm casual jacket and doesn't want to feel "bulky" and uncomfortable. While I know this isn't how Arc'teryx intended this product, I haven't tested it in hiking conditinos yet so I can't really comment on that. But it's amazing for casual wear. Maybe I'll update my review later once I go hiking.
Phil Viking at REI on 10/10/2013

My favorite jacket ever

I researched this jacket purchase a lot and finally came to the Thorium AR. I tried it on in the REI store and could immediately feel the quality that Arcteryx is known for. The fit is unbelievable; I feel like I'm not wearing anything when I move around. It is super warm but not too bulky and awkward. It looks great; my girlfriend loves when I wear it. And finally, the outer fabric is strong enough that it wasn't ripped the other day when I was out volunteering at Habitat for Humanity (carrying sharp objects sometimes).

I chose the blue style because I like the two-tone style. The two-tone is where the synthetic fill is used. Great idea!

I'm 6'0" 215lbs and the XL fits me well.

Like I said, I love this jacket. I wear it almost every day now. I couldn't say a single bad thing about it.
PurdueZach at REI on 11/11/2013

Top Quality Down

There's a reason I always return to Arcteryx for outdoor clothing - the quality of material and construction. I tried this down jacket for a 3-day backpacking trip to the Smokies and it was perfect. The athletic fit allows good movement, even with a backpack, and the provided stuff sack is convenient when you need to peel a layer. No cold/hot spots and the loft didn't shift around inside the fabric. This jacket does run a little tight; so putting fleece layers underneath makes for a really snug fit which may bother some folks. Exceptional quality with the workmanship (seams, zipper, cuffs, etc.) and the fit all around is true to size.
ATHKR at REI on 10/10/2013

Great all around down jacket

Great mid layer down jacket. Heavier and warmer and more durable than a Patagonia Down Sweater yet not as heavy as some of the down jackets out there that can cause you to overheat.

Great quality and nice fitting and feeling down jacket with synthetic insulation strategically placed.
dazdarren at REI on 10/10/2013

Super Light

I wanted a ridiculously light jacket for all manner of activities. This was does the trick. My wife thought the box was shipped empty.

For it's size it's quite warm. Packs down really small. Will be perfect for cool and dry camping.
levy at REI on 01/01/2014

Great Jacket!

A great jacket for daily use to and from work, and also great for weekend hikes with the dogs. The fit is great both in the body and arm length-I would highly recommend this product!
Jody the Hiker at REI on 12/12/2013