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Just what the doctor ordered.

Get your daily dose of core warmth with the superlight Arc'teryx Men's Atom LT Insulated Vest. Its Coreloft insulation makes the Atom excellent for shoulder season hiking, and you'll definitely appreciate it when your ski jacket isn't cutting it on winter's coldest days. Arc'teryx made the Atom's shell out of a durable Tinthan fabric that has a DWR coating for water-resistance. Polartec's Power Stretch material makes the sides air permeable as well as stretchy, and Hardface technology keeps the sides strong for many seasons of mountainous adventures.

  • Tinthan shell with DWR coating
  • Polartec Power Stretch sides with Hardface technology
  • Coreloft synthetic insulation
  • Trim fit, drop hem
  • Zippered hand pockets
  • Zippered internal chest pocket

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Here's what others have to say...



  • Familiarity:I've put it through the wringer
  • Fit:True to size
  • Height: 6'0"
    Weight: 185 lbs
    Size Purchased: Medium

OK, for the sake of being honest, I bought the atom vest instead of the jacket for... monetary purposes. turned out to be a great decision because this vest is bomber! keeps your core warm, plenty of flex where you need it, and breath-ability is off the charts. not to mention this vest looks SLICK... great for all occasions, especially when rocking a flannel underneath. From the slopes to main st., this vest doesn't disappoint.

How does the atom lt compare to the Patagonia nano air vest both in warmth and breath ability?

Hi Spencer- I would say these two are very similar... the atom might be a tad warmer, but the nano air is more breathable. hit me up a if you have more questions.


Daughter of the Year!

  • Familiarity:I gave it as a gift but have feedback to share
  • Fit:True to size
  • Height: 5'9"
    Weight: 130 lbs
    Size Purchased: Small

I got this as a gift for Fathers day and my dad keeps telling me how much he uses it. He is an avid golfer so he needs a vest that can keep up with him all season long. I have the LT version and thought that it might be too restricting to golf in since it had sleeves. So when I saw a vest version I had to get it for my dad. This makes a great gift for any man in your life that is looking for a versatile piece that looks good and is comfortable.


MUST HAVE...great gift for your sexy man

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

My husband has several vests (North Face, Patagonia...) but I got this vest for him for Christmas and its so comfortable and warm he literally naps in it. ; ) I wish I was kidding. My husband is 6'3 230 and wears a XXL. Its slightly fitted but the sides are made with a stretch so its very flattering. I have the women's hooded version and I've hiked, biked and skied in it and its still in perfect condition. Arc'teryx is pricey... but WELL WORTH the investment. I've bought North Face jackets and the black faded and it in some places discolored. Hope that helps!


Classy Vest for the Man with many Vests

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

When asking Mom what to get to Dad for Christmas, the answer I get every year is, "you know your father really likes vests." This year I wanted to get him a vest to put the other vests to shame. Enter the Atom LT. He can wear this vest with a nice collared shirt underneath for a night on the town (Mom likes him looking classy), under a jacket as good insulating layer, or as an outer layer for milder outdoor activties. He is bigger man (6'1", 230 lbs.) and typically wears a 2XL and even with the trim fit design of the Atom LT, it fit him perfectly. Here is what he had to say:

"I love my Arcteryx vest. It fits well and keeps me warm. I wear to work and play and it goes well in both situations. I like the length as it goes well below my waistline."

Time to throw out some of the other vests in the collection, especially the fleece ones covered in dog hair.


The Cool Little Brother

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

I own the Atom LT Hooded jacket, and since I am absolutely in love with it, I had to get the vest. This is a slimmer fitting vest that works great for high aerobic activities with mild temps where you would find a jacket being too much. It always doubles just as well as an insulating mid layer since the overall volume of the vest is low while still insulating very well. Trail runs, skiing, or just over your favorite flannel, this vest is the way to go.


Awesome vest, like the Atom LT Jacket.

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

This is like a hoodless and armless version of the Atom LT jacket:

Lightweight, very soft, lightly insulated, and sufficiently warm. Ideal for normal to brisk days, or layering on colder days. Unlike the other reviewer, I wear a medium Atom LT jacket and Rush jacket, but feel like the large Atom LT vest is a good fit. He was going for a "glove" fit, though.

What is the center back length of a medium?

Best Answer

you answered your own question, in the same day.. incredible!


Search no further for a vest

  • Familiarity:I've put it through the wringer
  • Fit:Runs large

Arc'teryx Atom LT Insulated vest is very light and warm, at times I dont even feel wearing it so light it is. It does not protect from a cold wind, but works great as an insulation layer under windstopper hard/soft shell. A vest sizing is larger then expected. I normally wear size Large in Arcteryx, but vest in Large felt bulky around the waist area. Exchanged to size Medium for a more "glove" fit. Overall its a 5 star vest, totally recommend it.