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Description

Ideal outerwear for fugitives in chilly climates.

Use the Arc'teryx Men's Atom LT Insulated Jacket as a mid-layer on days when the mercury goes into hiding or as a stand-alone jacket when there's a nip in the air and you need to travel light.
  • DWR-coated nylon shell is wind- and water-resistant
  • Coreloft insulation is lightweight, compressible, and warm
  • Polartec Powerstretch panels under the arms for unlimited range of motion

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Arc'teryx Atom LT Insulated Jacket - Men's

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Here's what others have to say...

5 5

great jacket

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

If you are looking for a great layering piece and don't want the hood, this is your jacket. I initially purchased this jacket and ended up going to the hooded version but everything is identical minus the hood. Fit is true to size but more regular fit vs the typical Arc athletic slim fit. Roomy enough to layer underneath but you seriously don't need a lot because this baby insulates like crazy. Add a little outdoor activity and you are good to go. Also great for wearing out and about. By far one of the most versatile pieces you will find.

5 5

best jacket ever

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

Although a bit pricey, it is worth every penny. It is warm, packable, comfortable and tough. Love the collar and sleeve cuff. If I had one complaint, it would be that it wrinkles easy. Best for travel and outdoor use.

5 5

Great Jacket to add to your collection!!

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

This is a great jacket to add to your collection of Arc'teryx, It's a really LT jacket that you can use in a wide range of temps. I started out in 35 degrees in the morning to 62 degrees in the afternoon. The jacket preformed very well, I was not hot or cold in any of the temp ranges. I was perfectly comfortable. I am amazed. The jacket is a real fashion statement as well, I received many compliments on the jacket itself. I will try this jacket even in lower temps to find its limits. Over all this jacket is made very well, and is very versatile for many different occasions. You won't be disappointed with this jacket.

5 5

Toasty mid-layer

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

This is a great light jacket or heavy midlayer. It is super light and compressible and way warm. The jacket packs well into its own sleeve when it's in your pack, but the core loft springs back quick and warms up fast. Arc'teryx laminates the core loft right to the face fabric so you don't have baffles keeping the insulation together. This is awesome because after use and abuse the insulation is still in the same place it was when you bought the jacket. Unlike baffled jackets if they get compressed for a long time or after a few years of hard use the insulation stops lofting back out and filling the whole baffle and you get cold spots.
The low profile stretch cuffs work great when layering to reduce bulk around the wrist. And the side stretch panels keep the fit snug.
When wearing the jacket alone those side panels help vent excess heat and they made the zipper with out a stop so one yank at the top of the jacket opens the whole thing up to dump heat fast.

I have used this by its self around town because it's classy looking. I have worn it on the skin track by its self and under my shell at a resort. This is a great piece to own if you live or recreate I the cold.

I'm 6'6" and 170 pounds and the large is perfect

5 5

Arcteryx got it right.

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

This is a great mid-weight level insulated jacket. It wears well inside a shell for heavy weather. It is a great and light and packable belay jacket. Its hard wearing and can be worn by itself for high output activity. The Large fits great - I'm 6' 170lbs.

5 5

Snug fit, quality build

I am 6 ft 170 lbs and am usually between a medium and large. I went w/ a medium and it is a bit snug but given the lightweight build, I see this a true mid layer so a snug fit is okay. If I wanted a more relaxed fit, I'd go w/ a large. Nice looking jacket and very comfortable w/ the side stretch panels.

5 5

Awesome jacket for cold weather activity

All I can say is that mine was a layer for 12 days between basecamp and the summit of Aconcagua, and it was an indispensable piece of lightweight gear. If it can help keep me warm at 20,000+ feet, it's good for lower altitudes and less demanding conditions. Worth it's weight in gold. I like it so much, I have the hooded and the un-hooded versions.

Hi There- I'm tossing up between Med and...

Posted on

Hi There- I'm tossing up between Med and Small. I'm 5'10, 153lb, athletic (as in cyclist..). I do prefer a snugger fit, so leaning small, but I'm concerned the jacket will ride too high, and my wrists will be chilly. I wear 30" trousers. chest is probably 37-38ish.. THANKS!

Responded on

I'd definitely go with the Medium. You're almost the exact same size as me and a Medium fits me in almost every brand. I'd worry about a Small being too short/tight.

Responded on

I know this question is old, but I am 5' 10-11 150lbs and also an avid cyclist and a Small is perfect. I can wear a base layer underneath, or a dress shirt, and have plenty of room.

5 5

Arc'teryx Atom LT Jacket Rocks!

  • Gender: Male
  • Familiarity: I've put it through the wringer

I bought this jacket in 2009 and it remains one of my favorites. It feels great over a wide range of temperatures, say, down to the 20's (if you're active) and up into the 60's. It's light (my medium weighs 12.3 oz) and the trim fit looks great around town AND on the trail. The "Powerstretch panels" do a nice job with ventilation during exertion. Jacket does have an internal chest pocket which is not listed in Product Description above. There's no cinch at the waist hem, but it's stretchy and wind-up-my-back hasn't been a problem. I'm a big fan of the "stretch-knit cuffs" - Arc'teryx chose a sweet fabric and nifty design for this part of the jacket (and the cuffs just feel great on my wrists). I can't recommend this jacket enough.

Pic below shows Atom LT in spitting snow at 11,000 ft in the Wind River Range.

Arc'teryx Atom LT Jacket Rocks!
5 5

Atom Kablam

I've owned this jacket just over a year. I wear it everyday from October -March. It is the perfect piece for cold commuting on a bicycle and chilly days to the craig.
I was very skeptical of the Coreloft insulation before I had purchased the jacket, and now I am a believer. It regulates with your body temperature very well. Not quite as good as premium down, but it still works amazingly.
Thinking back on it, I wish I would have gotten the hooded version, but this piece is very nice, but it also passes for looking like casual jacket.
Don't get me wrong, I'm a huge gear whore, but I don't feel the need to have every jacket look like I'm geared up to Summit K2 when I'm going out to dinner.
For sizing, I'm a pretty thin guy. 6'0, 135lbs with an even ape index. And I think it fits very nicely. It's hard to find a medium that actually fits these days.
The only thing I would add would be elastic waist tensioner so the bottom was more form fitting to my actual waist.

Responded on

where are you located? do you sweat alot on your bike rides?

5 5

Very Nice Midlayer Piece

When I first received this jacket, I was a little disappointed by the lack of , well, jacket. It's a very thin jacket. For it's price you would expect something like the Patagonia Down Sweater, which has substantially more girth.

But, after putting it to use, I am absolutely pleased with my purchase. For being a thin, slim fitting jacket, it is VERY warm. I use it as my insulating piece beneath an Arcteryx Theta SV, and the combination is perfect. It does a great job on colder days when temps are below freezing, although if the sun is out, and temps begin to climb at or slightly above freezing, I found the combination Atom LT/Theta SV was almost too warm. That's a good thing, in my opinion, being as I am confident I won't need any extra layers unless the temp REALLY drops.

For sizing purposes, I am 5'11", weight 180, have a 33-34 in waist, and I went with a Medium. The medium is perfect as a slim fitting, layering piece, although if I were to use this as an around-town jacket, I would go with a large for a more casual look. For reference, I wear a medium in the Patagonia Down Sweater, which is a nice, casual fit. So the Atom LT does fit slimmer.

In conclusion- great jacket, great for layering, very pleased

5 5

Awesome Atom lt. Best in its category

  • Gender: Male
  • Familiarity: I've put it through the wringer

Read the reviews. This jacket is awesome. I am not going to give you all the details. You will find them in the glowing reviews listed here and on other websites. I am up to my eyeballs in Arcteryx & Mammut jackets because they are the best overall quality. The Arcteryx Atom lt. is my all time favorite jacket. It is incredibly warm and light and looks outstanding. I have worn this jacket all winter by itself and as layer underneath a gore-shell jacket. It is a very versatile jacket for the spring, fall, and winter seasons. I am an athletic 5'9" at 160lbs and a large fits nice with room for a layer underneath. At the risk of sounding obsessed, I bought the hoody and vest version as well. I love this jacket. It is extremely versatile, light, warm, somewhat breathable, wind & water resistant. PS I bought the vest in medium for snugger fit.

5 5

Light, warm, comfy and stylish!

This jacket is amazing.
Very light, warm and also awesome for layering.
Use it for commuting, snow sport mid layer and just about anything.

5 5

Atom LT Insulated Jacket

  • Gender: Male
  • Familiarity: I've put it through the wringer

It's awesome. Fit is perfect. Wind proof and just what I needed for under my motorcycle jacket

5 5

ArcTeryx nailed it

  • Gender: Male
  • Familiarity: I've put it through the wringer

This is my most grabbed jacket when i leave the house. It just feels cozy and feels like the perfect jacket for a wide variety of Colorado/Utah temps. It's my favorite mid layer for cold weather. It's the perfect weight mid layer under a shell for skiing and under a soft shell for winter hiking. The fleece side panels really help it breath when you're sweating. The styling is plain enough to double as my every day cubical life jacket which makes it easier to justify the price tag.

Hi all, which size would be best for me?...

Posted on

Hi all, which size would be best for me? M or L? I am 5'10", 185lbs athletic build... 43" chest and 33" waist. Thank you in advance for your time. Cheers!

Responded on

Large.. im a tiny bit taller but my cheset is like a 40 and waist is 31 and im a Medium in this.

5 5

The Pop's All-Time Favorite

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

So fine I had to buy 2! Comfortable, warm and perfect for anything you wish to do with a little more warmth.

5 5

Perfect

  • Gender: Male
  • Familiarity: I've used it several times

Wear this jacket on a daily basis. Love the warmth to weight ratio. Can wear it in wide range of temps which is great for the ever changing CO weather. My go-to in pretty much any situation.

5 5

Great midlayer

  • Gender: Male
  • Familiarity: I've used it several times

Perfect syling to fit under a hardshell for extreme weather. Great as an outer garment for fall weather. Warmer than you would expect. Blocks the wind great except for the stretch panels.

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