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

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    9 Reviews


    Atom AR Hooded Insulated Jacket

    The Arc'teryx Atom AR Hooded Insulated Jacket is ready for peak-bagging missions, weekends in the wilderness, and cold days on the slopes. Layer it under a shell on particularly cold, wet days or wear it as a standalone piece when conditions are less harsh. Synthetic Coreloft insulation in the body, sleeves, and hood keep heat in while you embark on your winter adventures, and it retains its heat even when it gets wet. Coreloft is also highly packable making it easy to stow the jacket in your pack for easy access for when you need it next. When worn alone, the durable and lightweight stretch face fabric protects the jacket from tears from minor abrasions.

    Treated with a Durable Water Repellent, the outer shell of the jacket repels light precipitation when you're caught in an unexpected rain or show shower. When the conditions become more severe, pull on the insulated StormHood that will fit over your climbing helmet for elevated warmth. The jersey-knit stretch cuffs and drawcord hem seal out the elements so you stay nice and warm. Arc'teryx knows that you shouldn't have to sacrifice mobility for warmth. So as a result, the Atom AR was constructed with articulated elbows and underarm gussets so you can reach for your next climbing hold without being held back by your jacket meaning you get the performance you need in the wilderness.

    • Midlayer or stand-alone piece for cold weather adventures
    • Synthetic insulation throughout jacket retains warmth when wet
    • DWR treatment to face fabric beads and repels light moisture
    • Helmet compatible StormHood is insulated for elevated warmth
    • Underarms are gusseted for mobility and comfort
    • Articulated elbows enhance freedom of movement
    • Jersey-knit stretch cuffs and hem drawcord seal out the elements
    • Arc'teryx uses simple, function first designs for its products
    • Item #ARC005N

    Tech Specs

    Tyono (30d nylon), DWR treatment
    [body] Coreloft 120, [underarms] Coreloft 80, [hood] Coreloft 60
    insulated, helmet-compatible StormHood
    [external] 2 zippered hand, [internal] 1 zippered chest
    Claimed Weight
    14.6 oz
    Recommended Use
    skiing, snowboarding, backpacking, hiking, ice climbing, mountaineering, sport climbing, trad climbing
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Perfect gift

    • Familiarity: I gave it as a gift but have feedback to share
    • Fit: True to size
    • Height: 5'11"
    • Weight: 190lbs

    Very warm, comfortable and awesome fit. Good for all around use or when the elements are challenging.

    Highest Quality

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: small
    • Height: 5'11"
    • Weight: 140lbs

    This jacket is the perfect piece of outerwear for all of my favorite activities. On cold days, it is my top choice for hiking. I pair it with a hard shell for extra wind protection when necessary, but I usually wear it on its own. I can't stand the constant dance of taking off my coat and putting it back on while I am hiking, and this jacket solved that for me. It doesn't overheat, but I am always warm. I won't head out with any other jacket.
    On extremely cold days this jacket works well for trail running, as the additional sweat does not create that freezing damp mess that less technical jackets do.
    I particularly like the cut of the arms, as it is designed for activities where your arms are bent. This is very comfortable and much less restrictive than other high-end outerwear choices.


    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: Small
    • Height: 5'4"
    • Weight: 130lbs

    This is my go-to jacket in the winter. The breath-ability and warmth make it an incredibly versatile piece. Slight water resistance comes in handy when I get caught in a quick storm. Fit is great with ample length in the arms and torso. Love the hood design as it actually stays on when it is windy.

    Fit is great

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'9"
    • Weight: 145lbs

    I have not tested this out for warmth yet--I bought it for a light layer on warm ski days. But, the fit is great. I am 5'9" and 145 lbs. and the sleeves and length of the jacket are perfect in a size M. I bought the dark purple color and it is a great color, good alternative to a basic black jacket.

    Arc'teryx Atom is a necessity

    • Familiarity: I gave it as a gift but have feedback to share

    As part of the Arc'teryx essentials collection this jacket is truly a must own. Whether you buy the AR or the LT, everyone needs an Atom. Everyone. Fit is great and designed to work even with a harness. Insanely comfortable as well as impressively light and packable for a synthetic fill jacket.

    First date impressions...

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'6"
    • Weight: 125lbs

    Wow, this thing is super lightweight! So light and thin that I fear it won't be warm enough, but I'm reserving judgement on that until I've tested it. This winter in Ohio has been spring so far, with high temps in the 50s and 60s, so I can't really test this yet. I will say that on the 40 and 50 degree mornings, I've thrown this on and I did not overheat. It is very breathable and comfortable. It seems to stand up well against wind. If this thing truly takes me down through the winter temps as well, it will be the most versatile jacket I've ever owned. Fingers crossed and I will update once I've put it through more testing. The fit is absolutely amazing. I was worried that I wouldn't be able to layer under it because it seems so form fitting, and yet, somehow there is still space in here to layer. I should mention that I'm a 34 B, so your mileage may vary. The movement in the arms at the shoulder and elbow are like no jacket I've ever owned. Seriously, the arms/shoulders/elbows are brilliantly constructed for amazing ease of movement without the jacket riding up or limiting motion. I could do yoga in this jacket. Wow. Just wow. The collar is perfectly designed and very soft and comfortable when zipped up. There is even a little extra webbing along the top of the back in between the inner body of the coat and the hood, which provides coverage at the back of the neck when the hood is not on your head. Nice touch! No scarf needed. The hood fits brilliantly, gives great coverage, yet doesn't limit vision. I love that the hood is adjustable, great for those days when I wear my hair up in a bun or wear a bike helmet. The hood is designed to accommodate a helmet and has lots of volume. I do have a large, long head and a lot of hair, but with the adjustable design and brow construction, even those will smaller heads and less hair will likely still get a useable fit even when not wearing a helmet. This jacket works great as a mid layer too. Perfect stream lined fit under rain coats/outer shells. The design on the cuffs is the most comfortable I've had. Seamless coverage on the wrist with no constriction and no annoying buttons, velcro, or snaps etc. Slides under an outer layer like butter. Stays put when I move my arm around. The sleeves are very long, very long indeed, but the extra coverage is kinda nice and adds to the ease of movement. The fit overall is flattering and trim; doesn't make you look like a marshmallow. Rugged and ready for camp and trail, yet just stylish enough to get by for downtown walks. I have the black color. Mine arrived looking like it had been stuck in a backpack- lots of wrinkles, but its other charms have me overlooking the wrinkles. I should mention that the material makes a fairly noticeable crinkly sound, (if that kinda thing bothers you), another easily overlooked trait given the superior comfort and design. The only small quibbles I really have is that the coat seems a bit short in the front. Maybe I just have a long torso, but this does not really reach hip length on me. It feels just about an inch or two too short of where I'd comfortably expect it to be for good torso coverage. Also the hand pockets are just a bit shallow, could use a smidge more depth. But these are minor complaints on such a brilliant work of art. Certainly still deserving of this initial 5 star rating. I will update once it's handled some actual winter weather.

    I'm sticking with my 5 star rating. I was able to test it this morning while walking the dog, de-icing the car, and a 5 minute walk to work in 25 degree weather, with a wind chill around 17. It performed fabulously. This thing stops the wind like you're standing behind a wall and the warmth was plenty even with just a lightweight scrub tub on underneath. The hood worked like a charm to keep my head warm, even with wet hair! (I never use a blow dryer). I'm convinced that with a base layer underneath, this thing could perform in much, much colder winter weather as well. I'm seriously impressed. It has performed amazingly well under some really nasty cold, windy, rainy days lately too. I discovered this morning, that you can drive a car with the hood up with no vision limitations. Stay toasty and still see what you are doing. It was also very easy to move around and do things like scraping the windshield without feeling like movement and vision were limited in any way. This is going to be great around camp. This is serioulsy the most versatile, comfortable coat I've ever owned. All this in such a lightweight package. Man, this thing just became my most beloved piece of gear (okay, maybe a close tie with my hammock). It will come with me on every camping/backpacking trip/travel adventure from now on, as well as being the coat I grab just about every day. I still wish it was about an inch or two longer, especially in the front, and that the hand pockets had just a bit more depth, but seriously, other than those minor gripes, it is really perfection. RIP to my nearly 20 year old Mountain Hardwear Chugach that is finally starting to pick up holes/shreds in the outer layer. I'm very happy to have such a worthy replacement. Here's hoping it has a similar lifespan!

    I've tested it in some colder weather now. 20 F with a fleece hoodie underneath and 16 F with my kick *ss Craft extreme base layer underneath. Both times my arms were cold, there just didn't seem to be enough between my arms and the cold air. (In comparison, under these same conditions I tested my old Mountain Hardwear Chugach and my arms were fine, even with its 20 year old deteriorating outer layer). It was not a wind issue (this thing has no issues stopping the wind), rather there seemed to be a lack of enough insulation in the arms to prevent the cold from taking hold. So for me, this is going to be a great all around coat for any weather from below 50 to about 25. Colder than that and I might grab for something else, layer substantially more underneath (more than just a base layer or fleece), or rely on body movement/activity to heat things up. Still an extremely versatile and worthy piece of gear that I'm hanging on to, even though it isn't quite standing up to the colder temps for me, depending on the activity. Hiking would probably be fine, standing/sitting around or slow walks with my old dog, extra warmth is needed in the arms. Your mileage may vary.


    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'6"
    • Weight: 125lbs

    I haven't worn this yet given that it's summer, but I can tell it's going to be very warm when the temperatures drop. I purchased a medium and in retrospect I think a small would have worked better. The arms are a little too long, but overall the fit is good. I will also be able to layer things underneath easily.

    A Premeditated Gift.

    • Familiarity: I gave it as a gift but have feedback to share
    • Fit: True to size

    Okay, so my poor mother has never had much success with coats. (usually zipper problems...) So for her birthday, I set out on the mission of finding the jacket that would last.

    I compared 40 or so jackets, ranging from Lole to Patagonia to Eider, before I finally settled on this one. And I'm very pleased with this jacket.

    It's warm, functional, and fitting for everything I was looking for. From the StormHood that easily would be compatible with a helmet for climbing or cycling to the jersey-knit sleeves that comfortably pulls over the base of the hands on those days you've forgotten your gloves. The interior chest pocket is spacious, with plenty of room to throw your keys and a couple of other essentials, way better than some of the ones I've dealt with that you can barely fit a business card in.

    The material on this is very high quality, and its going to survive the long run, which was the main reason I bought it. And what's awesome about Arc'teryx products, is that they stand behind their stuff, if the zipper breaks or the material gives out, I'm covered on their fantastic warranty.

    What is the real difference between the Atom AR and the Atom LT? I'm currently freezing my rear off in Germany and my Gamma shell isn't cutting it. I want a light but very warm jacket and personally, I prefer the colors of the LT.

    Best Answer

    The LT is lighter weight. It is a trim fit, where the AR is an athletic fit (slightly roomier). The LT has less insulation as well as breathable, stretch side panels for enhanced comfort and mobility. Both are quite warm, but the AR is definitely warmer. I'd also check out the Nuclei!