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From ski resorts to summer camps.

You might zip up the Arc'teryx Men's Atom LT Insulated Jacket all year long because it's so versatile. Coreloft insulation makes this jacket an excellent midlayer for winter skiing, and you can wear it on cold camping trips in the summertime. Polartec's Power Stretch side panels ensure a full range of motion in a breathable fashion, and Arc-teryx coated the durable shell with DWR for water-resistance.

  • DWR-coated shell
  • Coreloft insulation
  • Polartec Power Stretch sides with Hardface Technology
  • Trim fit, hip length
  • Zippered hand pockets
  • Zippered internal chest pocket

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Arc'teryx Atom LT Insulated Jacket - Men's

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Here's what others have to say...

Unanswered Question

Ever layer one Atom LT over another? Sometimes my LT Hoody isn't enough and I wish it were warmer but still had the side panels to vent during exercise. Horrible idea or work well in anyone's experience? Used to work at Patagonia and we'd always double-down with two down jackets when things got colder. Thanks.

5 5

Atom LT and Atom AR

  • Gender: Male
  • Familiarity: I've used it several times
  • Fit: True to size

I have both the Atom LT and the Atom AR. I guess this review points out what I feel are the major differences and some similarities. The Atom AR has more Coreloft insulation, and of course makes the jacket warmer. I use it for trekking or just around town on fairly cold days. Awesome warmth. I've found the LT is good to about the high 40s to around 50 degrees before I start feeling cold, just when used for casual use. The LT has a trim fit where as the AR has an athletic cut, (Arc'teryx's standard fit) so the LT has a closer-to-skin trimmer fit, but still room for a light layer. I use it often for running. It breathes fairly well due to it's light weight. I have the LT in the carbon copy color, which is a very dark gray, bordering on black and my Atom AR is a dark gray, too (The LT is much darker) I really like the stretch panels that are part of the Atom LT jacket. As the AR has a loser fit, those panels aren't as necessary, but I do wish the AR had them. Great jacket. Glad I have both for different uses and different temps.

4 5

So Comfy

  • Familiarity: I've used it several times

Really comfy. Really warm when used under a 3L shell. As usual, arcteryx cut - if you're not super fit and skinny, it probably won't fit.

Responded on

Have to disagree with expectations for fit. I am 5'9, 175 and built athletically but definitely NOT skinny - a LG fits me like a glove. I just wish it had zippered outside chest pocket. Love it.

Responded on

I was shocked - but pleasantly surprised - at 6'2" and 195 lbs and semi-fit body that I can wear the Atom LT in a size XL, with room for a fairly decent amount of base layers. Never thought I'd be able to wear a "trim fit" Arc'teryx jacket.