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  • Arc'teryx - Atom AR Hooded Insulated Jacket - Men's - Black
  • Arc'teryx - Atom AR Hooded Insulated Jacket - Men's - Sangria

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  • Arc'teryx - Atom AR Hooded Insulated Jacket - Men's - Black
  • Arc'teryx - Atom AR Hooded Insulated Jacket - Men's - Sangria

Arc'teryx Atom AR Hooded Insulated Jacket - Men's

sale $239.20 - $299.00

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    26 Reviews


    Protective warmth.

    The Arc'teryx Men's Atom AR Hooded Insulated Jacket makes a magnificent midlayer for winter skiing. Arc'teryx placed different amounts of Coreloft insulation throughout the jacket for thermal efficiency. The StormHood slides over helmets with ease, and an athletic fit ensures a full range of motion. The DWR-coated shell resists light moisture so you can wear this jacket without the shell around town.

    • DWR-coated shell
    • Coreloft insulation
    • Athletic fit, hip length
    • Helmet-compatible StormHood
    • Adjustable hem, knit stretch cuffs
    • Internal chest pocket
    • Item #ARC004D

    Tech Specs

    [face fabric] Gossamera (nylon), DWR finish
    [body] Coreloft 120, [underarms] Coreloft 80, [hood] Coreloft 60
    hip, drop-tail hem
    Center Back Length
    29 in
    yes, helmet-compatible StormHood
    2 zippered hand, 1 zippered internal chest
    Claimed Weight
    1 lb
    Recommended Use
    skiing, hiking, camping, climbing, casual
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Atom AR

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: Medium

    My AR just came today. I will update my review after I take it to the mountains in the coming months. However, this sale prompted me to buy this jacket, and I imagine other people are looking at it too.

    My initial impressions are positive. The medium fits my build well. I was on the fence about ordering a small or medium. For reference, I have a 100 weight mountain hardware fleece pull over and a size small marmot minimalist shell. I also have an older north face Denali fleece in a size small.

    Anyways, my vision with this jacket is to be able to layer it with the 100 weight and or a light down vest in ultra cold conditions. Because of my interest in layering it and my broader shoulders I went for the medium. Layered with the marmot shell, the jacket fits well. The tail/ bottom of the jacket sticks out maybe a half inch below the shell, but not an awkward amount.

    Just putting the jacket on in the house lead me to being almost immediately too warm.

    Search is Over

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: Medium

    I've been searching for my insulating layer for some winters now, and I've finally settled on the Atom AR. Partially b/c Arc'teryx fits my build the best out of the major brands. But also the weight to warmth ration fits my needs during cold and windy Michigan winters. I do layer the Beta AR when it starts dipping below 35 degrees and I must say it's a inspiring combination. I would also recommend this over the Atom LT if you're planning on wearing this in ~35 degrees or less. I've tired both and the little bit more $ is worth the warmth by far.

    Huge Fan of this Jacket

    • Familiarity: I've put it through the wringer
    • Fit: True to size

    Another great product by Arc'teryx. This jacket is great for all types of occasions during colder months. Great for active wear as well as can wear out to casual occasions. The athletic fit is great to allow range of motion.

    One hoodie to rule them all...

      If you've never bought an Arc'teryc item, then this one will definitely have you saving up every paycheck to fill your wardrobe with everything this sell. No one matches their build quality and comfort/functionality... no one!! Warm, light weight, fits like a dream.... with that said for taller slender people it will fit great but is a little shorter in the front. Great if you're belaying someone and need access to your harness.

      Great fit and construction

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: Medium

      Just got done putting this thing through the wringer over the weekend. Temps were in the 20s all morning and my Atom AR kept me warm with a base layer and Patagonia R1 underneath. This thing is warmer then my Patagonia nano jacket. The two things that are where this thing excels is in fit... I'm 5'9 and 165lbs. This thing fits me perfect. The next is construction. Climbing all over quartzite this weekend, with lots of rubbing and scrubbing on the rock. Not one blemish on this jacket.

      Great fit and construction

      Excellent Jacket

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: True to size
      • Size Bought: L

      Used it just a couple of times now and its already one of the best mid-layer I've ever bought. Good fit, breathable and light weight.
      Hope it will hold up in WI winter !

      Atom AR for Days

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: XL

      Overall this jacket is great. I can wear it pretty much in any temperature ranging from 45 and below. If you get to the extreme temperature 10 degrees or below, I would suggest having a hard shell over it block the wind better or having a warm fleece or thermal underneath. Also, I would advise using a hard shell if the weather is sloppy out (rain, sleet, snow). The DWR works great but I wouldn't want to chance wetting out the jacket.

      The best three features have to be 1. the hood (put a beanie on with the hood and your head remains toasty for days) 2. the pockets (they all work great and functional esp the hand warmer pockets) 3. the high collar (perfect protection to keep your neck warm if you forget the scarf).

      The only downside is breathability. It doesn't vent well. So if you are skiing, snowboarding, shoveling, etc; this jacket isn't going to perform as well as the LT version. But if you are using this jacket for belaying, commuting, standing around in the cold weather, it will perform admirably.

      I can't take it off

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: Small

      First and foremost I can actually take it off, I just don't want to. This jacket is so comfy and extreamley versitle. I can wear this jacket around town since it has a great cut to it. I can also wear just this on those warmer days on the ski hill. Or use it as a layering piece with a gore-tex shell on those really rough days.
      The Arc'teryx Atom AR features 120g of coreloft insulation in the body, 80g under the arms and 60g in the hood. Compare that to the Atom LT (lightweight) at 60g in the body. The AR is a whole lot warmer than the LT, and breathes surprisingly well for having synthetic insulation. The face fabric on this piece is a nylon blend and has been DWR treated so that water beads up on top of it and will roll right off. As usual with Arc'teryx you get what you pay for, but in the end it will always be a quality product.
      I'd recommend this to any skier who needs a great spring jacket, or someone who likes to venture out into the woods on those colder days where there may be some rain involved. This jacket kicks ass!

      A new fan of Arcteryx

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: Large

      So I was having quite the issue in purchasing a winter jacket this year. I received $$ to buy a new jacket and wanted something very warm. Long story short, after researching, educating myself on the differences between insulated, soft/hard shells, triclimates, etc., visiting numerous stores and checking myriad online sites, I finally decided on this beautiful jacket.

      I was hesitant that it really would be that "warm jacket" to withstand the Chicagoland winters (or even Wisconsin or Minnesota which I frequently visit in winter).

      After opening the package from Backcountry, I was thinking, "is this it?" as it seemed too light and would not be warm enough. As iterated above, it is light yet very warm. I have worn it in 40 degrees down to single digits so far and have been comfortable, including damp weather (much moisture in this area in the winter). When it is very windy, I can see having a shell to defray this would be beneficial, but in due time. So far it has been very impressive and comfortable. I read this all over and this is a common theme in comments - that the jacket is deceivingly warm given its' light weight.

      It is bulky a bit and admittedly I am an odd size - I usually wear medium shirts these days as I dislike wearing a large given my stature (sorta tall, thin, not broad shoulders and I have skinny wrists). The medium (see below) was a tad too tight, although this is the style of the jacket ("athletic fit") and after buying the large, I second guessed my decision and wanted to try on the medium. Backcountry/my gearhead Justin were amazingly accomodating. They are surely a company I will do business with again as he had a medium sent to my home and told me just to send back whichever I didn't want.

      I am just under 6" and am 185 lbs. The large works and the reason I am going with the large is because if I want to layer warm sweaters/fleece underneath in the future, I want to be able to not be too constricted (it felt this may be the case). The sleeves are a bit long on the large for me and loose on the wrists just a bit (but that is because I don't have the largest wrists as mentioned). The issue with the medium, however, is that since I'm tall for a medium, it comes up a bit short on the waist vs the large which is noticeably different.

      At any rate, I am so satisfied with the quality of this jacket in the comfort, the warmth, the style and the attention to detail (stitching, zippers and features), I am trying to decide on if I want the SL or the LT for warmer weather. I have tried on the LT and it is very comfortable and will go with medium on that.

      I also will be getting a shell next winter; there is no doubt that I will go with Backcountry for future purchases. Very impressed all around.

      If you're on the fence, buy it.

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: Small

      After returning three other winter jackets in the last year, this is the one I've landed on. And I love it.

      I run hot and needed something that kept me warm during Minnesota winters without overheating. So far I've been shocked at how well it does it's job. It's deceptive when you look at it or pick it up - it's so light and trim.

      I think I read one reviewer say that he was cheating with this jacket. I feel the same way. If you're on the fence, buy it.

      Worth every penny, and then some.

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: Small

      Amazingly warm for how light it is, stuffs down pretty well too. The fit is great, I like the elastic around the wrists because it's easier for gloves to fit over. No hold ups or problems with the zipper. The waist and hood have drawstrings, and tighten down well. And the pockets keep your hands as warm as gloves do. I did a 5 mile hike in 25 degree weather (only wearing a Stoic baselayer) and had to leave the jacket unzipped. I haven't been rained on yet, so I can't comment on that, but the material looks to be water resistant at most. I wouldn't take it in the rain without a rain jacket. As I said though, I haven't been rained on yet, so I could be wrong.

      Well fit, super warm, bomber mid layer

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: True to size
      • Size Bought: Medium

      Wanted a super warm mid-layer for winter hiking and ice climbing in the -20 to +10 degree Fahrenheit days in New Hampshire and Vermot. I could alternatively layer 2 med-light weight puffy jackets, but that turns me into a marshmallow beneath my shell and reduces mobility. I also wanted a light weight and warm jacket for rock climbing during 40 degree late fall days. I also wanted a jacket that would keep me warm while standing still waiting for the bus or train.

      I own the Arc'teryx Nuclei LT, and that's a great mid layer, but I wanted something warmer without the price of the Nuclei AR.

      I bought a medium. Fits great. I'm 5'9" 170lbs, 32 inch arm length, 41-42 inch chest, 31 inch waist, athletic wrestlers build. Just enough space for a fleece and a base layer to comfortably fit. Barely compact enough to layer under a medium Arc'teryx Alpha FL without being squeezed.

      Warm! It may be a bit too warm as a midlayer in anything but the coldest temps, but I haven't yet tested it. It will allow me to give my belay jacket a rest during low activity intervals. Perfect weight for staying warm in the city.

      The face fabric, for a puffy, feels bomber. No sheen, but the reflective product label. Doesn't make me look like the stayed puff marshmellow man. Hand warmer pockets are felt lined and feel marvelous. As with most Arc'teryx products, fit, finish, and style are extremely well done. I perfect for going about town.

      Great range of motion. Doesn't lift much with arms raised above, so it shouldn't pull out from a harness while climbing. The hood has a single adjustment in back and it allows the hood to stay put with and without a helmet. My Mammut Rock Rider helmet, one of the bulky polystyrene types, fits well underneath, but just barely - the shoulders hardly lift up when glancing down, but the back of the jacket pulls up ever so slightly. Doubt this would happen with a smaller, plastic shell helmet like the Half Dome.

      For my needs this is a great jacket. My only complaint is that the jacket lacks a stuff compression sack and does not stuff into its own pocket. I'll have to find a compression sack that works for clipping this to my harness.

      Nice jacket but very snug through chest

      • Familiarity: I returned this product before using it
      • Fit: Runs small
      • Size Bought: Large

      I ordered the Atom AR to replace my aging Wild Things Primaloft Sweater (vintage 2004). Very nice jacket, great looking and high quality. But, the fit doesn't work for me--the size Large is fine through the waist, but the chest/shoulders/armholes are constricting with just a Patagonia R1 underneath. Okay with a base layer, but nothing else... returned. Might try an XL, but then I'm afraid i will lose the nice fit around the waist and lower torso.


      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: XL

      The Atom jacket is the BOMB!!!! My favorite jacket of all time! I have had the Atom jacket for over 3 years and it looks brand new, the material is just durable! The Atom has been with me everywhere from winters in the Utah desert to cold days on the mountain.

      Pros: Gossamera (nylon) material is soft but yet durable, Core Loft 120 on the body is perfect!

      Cons: there aren't any but maybe the fit.

      Review: If you are in need of that do it all insulation jacket. This is your pick! Its an everywhere jacket; climbing, hiking, camping, skiing and just chilling hard with your friends.

      Its like wearing a sleeping bag!

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: Medium

      Super warm, lightweight and comfortable. I sleep in it when it gets super cold and my sleeping bag wont keep me warm. I have used it for a few 14ers and it was perfect.

      How does the AR fit compared to the LT? I normally wear an XL in Arcteryx products and that usually leaves me ample room to layer underneath. I tried on an XL Atom LT at the store and it was too short in the waist. I couldn't lift my arms above my head without the jacket riding up above my belly button. So does the AR have a longer length? Also, I know the AR won't be as breathable as the LT, but is it breathable enough for moving quickly through the mountains with a gore-tex shell over it in 20-30 degree temps? Cheers!

      IN response - I understand the concept; I am asking about specifics. I know the AR will be cut a bit looser, but is it any longer from shoulder to hem than the LT. Also, is the AR breathable enough for Moderate to High output activity? Lol and I accidentally marked the response as helpful, couldn't undo. That was an answer I could (and have) easily gotten from the product descriptions.

      Best Answer

      Hey Sean,

      Trim-fitted garments share the motion-friendly traits with our 'Athletic' fit garments, but are patterned with lower volume for reduced bulk. These close-fitting pieces layer well under other garments.

      Athletic fit utilise anatomical shaping and gussets to enhance motion by minimizing excess bulk. Easy layering under or over each item extends seasonal versatility and comfort.

      Unanswered Question

      Assuming sized up to a medium, how well would this work over a small Atom Lt and a medium Alpha Fl as a belay jacket during Ice climbing/cragging?

      Is this piece designed to be layered over the atom lt? If so, do the sizes run true in both pieces when layering?

      Hey Mark,

      The Atom AR has a different more durable face fabric (Gossamera) compared to the Atom LT and it is an athletic fit which is Arc'teryx's standard fit. The Atom LT is trim fit. Also, the AR has more synthetic insulation so it will be warmer. Both are designed to be layered under a technical shell. Feel free to contact me directly with any more questions about Arc'teryx Jackets.


      Expert Gearhead


      5'11 170lbs what size do you think

      How does this jacket perform in light rain?


      This jacket will do great, in light rain! It's definitely not meant for, or priced for, a big down pour. But, it will get you through town in a light, but consistent sprinkle.

      More questions? Let me help!

      Emily Jenson

      Expert Gearhead


      How does this jacket compare to the patagonia nano air or nano puff regarding warmth, breathability, wind resistance, etc? Thanks

      Best Answer

      Hey Roberto, the Atom AR is going to be considerably warmer than either of those pieces. The AR uses several heavy weights of Coreloft continuous insulation (120/80/60, body/arms/hood) and has a non-baffled construction, so there are fewer seams for wind to get through.

      The Nanopuff uses 60g insulation throughout and is baffled, so will be considerably less warm; the face fabric of the Nanopuff is less breathable than the Atom.

      The Nano-Air is in entirely other category, and is designed to be as breathable as possible to keep you warm while active; the shell fabric and insulation are intentionally designed to be air-permeable. You would need a light shell over a Nano-air to be equivalently warm to either the Nanopuff or Atom in any sort of wind.

      The warmth scale here is Nano Air > NanoPuff >> Atom AR. If you're looking for a more breathable Arc piece, the Atom LT is a good choice, as it has uninsulated fleece side panels designed to vent heat while moving, but again, in a stiff wind you'd need a windshirt or light shell for warmth while static.