Arc'teryx  Atom Insulated Hoody - Men's

I was in the market for a new lightweight warm jacket for hiking. This jacket caught my attention, and it nicely meets all my needs. It’s light, warm, stretchy, packs easily, and is breathable under heavy exercise. It makes a nice coat by itself, and is slender enough to be a mid-layer. I wore during a chilly walk in the woods, with a T-shirt under the jacket. Temperatures were in the low 40s, and it kept me nice and warm. Pros: It’s light weight, only 12.5 ounces. It’s nice and warm, for all that it’s light. It squishes down enough to be almost nothing in the pack. Pockets with hidden zippers Wind and water resistant. Even if it does get drenched, the insulation performs when wet Cons: The size seems to be a little small. I normally use a size large, and even then some items kind of hang off me. This jacket is a little tight. The sleeves fit very well, though. I’d suggest getting one a size larger. The drawstring for the hood is on the back, which makes it a little hard for me to cinch the hood down. I anticipate that this jacket is going to accompany me in my upcoming hiking ventures.

This jacket is a solid go-to for everyday adventures. It’s not too heavy, not too light—just the right balance for staying comfortable. I wore it on some early spring hikes, where it was great to start off with and easy to shed once the day warmed up. I also think it would work really well on chilly, windy days when you need just a bit of extra protection. For reference, I’m 5'10" and 170 lbs, and the medium fits me pretty well. Overall, a solid, versatile jacket for anyone who spends time outdoors.

I grew up backpacking the Blue Ridge with my dad. After a below-the-rim Grand Canyon trip with a friend twenty years ago, I'd let the habit slide until the pandemic started and I began dayhiking local trails again. I'd ironed out every aspect of my gear (hydration, footwear, pack, etc) except clothing; after a few years and three or four different jackets I still found myself uncomfortable regardless of the layers I brought. Turns out between a light merino blend long-sleeved t-shirt and the Arc'teryx Atom, I'm good from 80° down to freezing. This hybrid jacket thing effectively blocks wind while remaining incredibly breathable. I'm used to light-but-bulky down -- but the Coreloft synthetic insulation and fleece side panels combine for effective warmth without getting in the way. For a particularly sunny uphill section a couple weeks ago I was hiking in 45° weather with just a shirt and it would've been nice if this stowed into its own pocket, but it stuffed into the hood well enough to stash neatly in an exterior daypack pocket. And as clouds and a cold front rolled in on the descent, while I found myself wishing I'd brought gloves and a hat, my core and arms were toasty and comfortable. I'm 6'2"/175 and wear a medium. It's got just enough room inside for a midweight fleece if needed but still looks fitted and crisp over a thin long-sleeved base layer. To my massive delight the sleeves were JUST long enough (I usually get a 36" sleeve on dress shirts). The left interior pocket is deeper than expected, and the zipper is nicely unobtrusive.

The Arc'teryx Men's Atom Insulated Hoody is a versatile and high-performance jacket that has quickly earned a place in regular rotation. The hoody is lightweight, but somehow provides great warmth on those days when it is cold and even rainy. At the same time, it can be worn on more temperate days as it does not cause you to get overheated due to great ventilation and breathability. From a mobility standpoint, the jacket is perfect for everyday wear as well as going on hikes and other outdoor activities. The jacket fits wonderfully and even the hooded area is large enough to allow for a cap or beanie. Overall, this is a great hoody for those looking for something lightweight that has great insulation, breathability, weather resistance, and most importantly is comfortable.

I have an atom hoody I bought from REI a couple years ago that fits and feels amazing, still now to this day. Somewhere between then and now, they revised it and changed the fit. The old one said “arcteryx” under the logo, for reference. They are both M, but it’s now made for less than athletic people. There’s nothing wrong with that, but then you should make 2 fits. Slim and let’s say casual. This new fit is large and puffy around the belly and massive around the arms, making my slim body look bloated. Will most likely be returning. Big bummer, as this had become my favorite jacket and I saved up a lot to finally buy a second one.

Atom LT jacket from 2016 is the OG. Everything since has been a downgrade in quality and price. Probably time for me to find my new brand.

Bought this for work, and now I use it everyday. It light and keeps you warm even on windy days until the temperature goes below 20°F. Be mindful that this material can get snagged and make a hole easily, but definitely great quality to stay warm. Also I sized up from L to XL. Size L would've been tight around chest and shoulders area.

For the insane price of this jacket, I was truly hoping this was going to perform a lot better. It is very comfortable, and while it doesn’t necessarily feel cheap, it does feel fragile. For layering, I’m sure this jacket does wonders, but for casual wear, which I initially purchased it for- it fails. In 50 degree weather, it fails to even retain half of the heat my body is producing. It’s a shame.

The fit is great, it feels good and looks good. But not warm at all and very fragile. I fell while climbing and it ripped everywhere, as if it was made of gift wrap paper. Arcteryx wouldn't replace it, but gave me 40% off a new one. Even at 40% off it's still overpriced, in my opinion.

Very nice hoody. Not many pockets. Not very warm in the wind. Can feel the wind. Looks and feels great. Just not as warm as I thought.