Arc'teryx Atom LT Vest

Priced: $114.99 - $145.00 Rated:   - 5 stars out of 5 by 17 reviews.
Arc'teryx Atom LT Vest
Zoom In
Color: Tobiko
Available Colors:
Visit our Daily Deals for great products at low prices.
Arc'teryx Atom LT Vest -

The Arcteryx Men's Atom LT Vest. This insulated vest provides core warmth with Coreloft 60 insulation. The Polartec Power Stretch side panels ensure a snug fit and maximum freedom of movement combined with a hard-shell.

FEATURES of the Arcteryx Men's Atom LT Vest.
SPECIFICATIONS of the Arcteryx Men's Atom LT Vest.


  • Brushed inner collar feels soft against skin
  • Front zipper features an insulated windflap; collar has a soft, brushed lining that is kind to skin


  • Outer shell fabric has mechanical stretch for mobility and features great water repellency and wind resistance
  • Composite materials
  • Polartec® Power Stretch® with Hardface® Technology; Luminara™—Nylon weave fabric with wind and water repellant coating; 60 gm/m² Coreloft™ insulation
  • Drop-back hem with adjustable hem drawcord
  • Two hand pockets with zippers, internal chest pocket with zipper, hem drawcord
  • Hem drawcord cinches to keep out cold air
  • Lightweight and compressible, the Atom LT features Coreloft™ synthetic insulation; Coreloft is a thermally efficient polyester insulation with excellent loft resilience
  • Highly breathable construction helps you maintain an ideal body temperature during ascents
  • Shell’s four-way-stretch fabric flexes with your movements for a more athletic feel
  • DWR finish (Durable Water Repellent) helps bead water from fabric surface


  • The Arc'teryx Atom LT vest has an athletic fit in a hip-length design
  • Low profile, stretch side panels provide a trim fit


  • Moisture-wicking
  • Polartec® Power Stretch® with Hardface® side panels increases active-use breathability and mobility, and decrease bulkiness


  • 60g Coreloft insulation retains just enough warmth without causing you to overheat

Weather and Wind:

  • Durable Water Repellent finish fends off light rain showers and snow
  • Lightweight wind-resistant face fabric with DWR finish, warm and resilient synthetic Coreloft insulation
  • The DWR coating adds water protection, and the HardFace exterior technology increases durability as you brush up against rock and ice
  • Full front zip with wind flap


  • WaterTight front zips help block out moisture
  • Internal chest pocket with zipper adds extra storage space
  • Two zippered hand pockets offer warmth and hold gear
  • Zip handwarmer pockets and 1 internal chest pocket


  • Garment is highly compressible and lightweight for easy packing
Preserve your core warmth with the Arc-teryx Atom LT Vest. The Atom LT vest is a super comfortable, layer designed to sit comfortable under jackets when layering and keep you warm and dry. Made with Arc-teryx Polarteck power Stretch and Hardface technology, the Atom LT is moisture-wicking, breathable, wind and water resistant and all around durable item of clothing ideal for activities such as skiing, snowboarding, climbing, hiking, etc. Constructed lightweight, the vest is both compressible and packable. Internal pockets give extra storage for small personal items and hand warming pockets add protection against wind.

Berg's Ski Shop
A lightweight, compressible vest that provides core warmth with Coreloft™ 60 insulation. The Arc'teryx Atom LT Vest packs small yet offers exceptional warmth. The outer face fabric is moisture resistant with a DWR finish which extends stand alone usability. The men's Arc'teryx Atom LT Vest has Polartec® Power Stretch® side panels for a snug fit and maximizes freedom of movement for the ideal mid-layer under a hardshell.
Christy Sports

Arcteryx Atom LT Vest - Men's: This sleeveless core-heater hugs the body with efficient Coreloft™ insulation to preserve warmth,  The fleece side panels—made with Polartec® Power Stretch® with Hardface® Technology—increase active use breathability and mobility. The outer shell is wind and moisture resistant. 

Technical Features.
Compressible and packable.
Wind resistant.
DWR finish (Durable Water Repellent) helps bead water from fabric surface.
Composite materials.
Breathable, stretch side panels for enhanced comfort and mobility.
Collar Configuration.
Soft brushed-lined collar.
Zippers & Fly Configuration.
Full front zip with wind flap.
Hem Configuration.
Drop back hem.
Pocket Configuration.
Internal chest pocket.
Two hand pockets.


An unheralded hero of the outdoors, the vest is one of the most versatile pieces of winter clothing you can own. Whether on top or layered underneath, the Arc’teryx Atom LT Vest warms your core while keeping your arms cool and free. The side-stretch panels provide a slim, snug fit that doesn’t constrict. The hem drawcord and brushed collar add a little extra comfort at the edges.


Keep your core warm on your next alpine adventure with the Arc'teryx Men's Insulated Vest. Its insulation warms your core without feeling bulky and is highly compressible for easy packing. Use the Atom LT as your outer layer during cool days or as a layering piece when the temperature drops.


The Arc'teryx Atom LT vest is a sleeveless core-heater that hugs the body with efficient synthetic insulation to preserve warmth. The wind- and water-resistant outer shell extends stand-alone use.


Mountain Gear
Layer on the warmth and protection and preserve mobility with ARCTERYX’s Atom LT Vest – an ideal core-heater for when you are belaying your partner or making tracks.

Ramsey Outdoor
Lightweight, insulated Coreloft™ vest, designed to preserve core warmth; Ideal as a layering piece for cold weather activities. This sleeveless core-heater hugs the body with efficient Coreloft™ insulation to preserve warmth while durable fleece side panels—made with Polartec® Power Stretch® with Hardface® Technology—increase active use breathability and mobility. A wind and moisture resistant outer shell extends stand-alone usability.
Want it cheaper? Set your own price.
Enter the price you want to pay and we'll email or text you if we find a store that will sell it for that amount:
Price: $
Your email:
Cell number: (optional, for text message)
Learn how offers work...
16 people have already set their own price.
Average Price History: Price History
Review RatingNumber of Reviews
Back length (in.):27 inches
Closure:Full Zip
Fabric:Nylon / nylon blend
Fabric Rating:Water-resistant
Fabrics/Materials:Polartec® Power Stretch® with Hardface® Technology—88% poylester, 12% spandex, 230 g/m² andLuminara™—Stretch nylon ripstop
Fit:Trim, hip-length fit
Hem:Drop back hem
Hood :No
Insulation:60g Coreloft™ synthetic insulation
Insulation Material:Coreloft
Length:Center back measures 29"
Lining:Ripstop nylon
Lining Material:100% Nylon lining
Material:100% Nylon
Pockets:Hand pockets and internal chest pocket
Recommended Use :All year use
Shell Material:100% Luminara™ nylon shell fabric
Shell fabric:Ripstop nylon
Shell lining fabric:Ripstop nylon
Waterproof:DWR coating
Weight:225 g / 7.9 oz
Compare specifications to related products.

Similar Products:

Arc'teryx Atom LT JacketArc'teryx Atom LT Jacket$138.99 - $199.00
Arc'teryx Atom LT PantArc'teryx Atom LT Pant$172.74 - $189.00
Arc'teryx Atom LT HoodyArc'teryx Atom LT Hoody$137.99 - $229.00

Subcategories of Jackets & Vests:

Related Categories:


Arc'teryx Atom LT Vest Reviews:

Positive Reviews:

I don't really wear this brand anymore but once I tried on this Atom LT vest at the local outfitter I had to have it. It is warm for the pack weight yet thin enough to fit inside the slimmest of Softshells. Even so it is still lofty and snug without being too tight but just remember, unless you have a basketball player sized torso, to size down.
At 5'8"/155lbs I usually wear medium in everything but the small Atom LT vest fit me. The tags even read next to the Small that it is equivalent to a Men's 38R which is a Medium in the USA.
Note: there is no hem cinch and the hemline has an elastic band that hugs your belt line when you zip it up so it is better to make sure the vest is not baggy when you buy it or the hem will just hang loose and cold air will blow in from the underside.
My only gripe is these are so limited in quantity that I had to wait an entire year for my size and color choice to return once the Fall 2011 stock had sold out. And yes by Thanksgiving pickings will be slim on these so it is pointless to wait for them to go on sale because they will already be gone or they will immediately disappear from existence the minute online retailers send out the annual Arcteryx Sale email.
Even at $144 the price is not so bad considering all of Arcteryx other vest items start at $199 (and those are all non-insulated fleece vests).
It is important to note that by 'design' the Atom LT vest is meant to be and works best, in my opinion, as a snug fitting mid layer and NOT an over sized outer layer!
The nylon outer shell material is super soft and wont last past a morning of mild bushwhacking.
Also yes it does have three generous pockets: two bonafide great hand-warmer zippered pockets and one deep zippered internal chest pocket.
This makes the entire piece a great deal considering.

Olaf at on 11/10/2012

Functional, Practical, Stylish

Received the Atom vest as a pre-Christmas present chiefly to replace annually replaced fleece vest that I wear in the office. I have a corner office on the second floor of a historic building on the Chesapeake Bay. Winter wind whips right through the walls and windows, so I always need something lighter than a jacket and less bulky than a sweater. (My wife confiscated my favorite cardigan after she saw me wearing it during a visit to the office—said it made me look like "Mr. Rogers." Ouch!) Thereafter, for the past few years, fleece vests have been fine but I was constantly replacing them when they started to pill. I also spend time on the waterfront where a wind-proof product is essential. So yeah, the Atom vest looks cool in the conference room, it keeps me comfortably warm when the wind blows through the walls, but it flat out performs in the elements, too. We've had steady 35-knot winds yesterday and today with temps in the low 40's to begin with--whatever that converts to in wind chill. I was outside a good part of the day with a t-shirt, shirt & tie and this vest. No kidding, didn't feel even a chill in the core. With a good shell, this will rock! (Could easily fit under a sport coat, too.) Haven't found better warmth-to-weight ratio. Packs incredibly small. Lined neck piece is nice feature when zipped all the way up. Two zippered outer pockets and inner pocket are roomy. Back is cut long enough to cover lower back, down to top of hip pockets. For me, very practical, stylist and functional. I can wear it around the office, yet don't have to worry about grabbing a jacket or shell when I have to make a quick dash down to the docks. I have 17" neck and 46" chest. XL fits fine. Really can't see how a vest could be made better. I'd buy it if I hadn't received it as a gift.
Pine_Barron at REI on 12/12/2010

I am 5'11, 30 waist and 145 lbs. I found that the small isn't quite snug enough in the waist and upper shoulder (the upper half of the shoulders on the vest doesn't have the elastic band). It fits me well, don't get me wrong, but with the lack of elastic all the way around the shoulders and the lack of drawstring at the waist, there is space for wind to get in which is not so great if temp is getting low. Love the quality of build and the look, but those details make it tough to stick with it. May need to return for something that has a waist drawstring and tighter armholes.
I will clarify that this would not be much of an issue if it was being used to layer under a jacket, but I like wearing vests as an outer later over base-layers when the temp permits for more freedom of movement and comfort. So ideally, a vest worn consistently in this manner would be better sealed off from the elements (namely wind) at the edges.
In spite of all of this I am still considering keeping it though. It really is a nice vest and I will stick with it if the next one I try (Patagonia Nano-Puff Vest) doesn't beat it out with the above mentioned criteria. The Atom Vest scores points for style, comfort, range of motion, warmth to weight ratio and craftsmanship.

bthp1062096 at on 12/18/2013

Amazing warmth and versatility

What a great vest and I usually dont like vests. I have the Atom LT hoody which is arguably the best midlayer I have ever encountered. As such I ventured to try the vest version as I tend to overheat when I do anything outdoors. I have been nothing but impressed with the vest from 20F - 60F in wind, fog, rain, and sun. This fits amazingly under my Beta LT and my Acto MX jackets with room to spare. My only criticism is the lack of a hem draw chord like the other Arcteryx midlayers. It would be simply nice to have when layering under a shell to prevent a small amount of bunching.

Overall: excellent warmth to weight ratio, packs down small into its own pocket, great for higher paced activities or slightly warmer climates and looks great.
Erik Je at REI on 11/11/2013

Depending on your preference, this vest may run large. I prefer my running clothes to fit fairly close, but at 6'1", 195 lbs, 42" chest and an athletic build, I found the vest to be pretty baggy. I am happy with it, but I would have preferred a more steamlined cut. The build quality is superb and the breathability of the sides and the wind protection up front make for a well designed running companion. I gave it four out of five because the Face material isn't "bound" to the insulating material. I don't know if this is a design element to aid in wicking moisture, but is a bit annoying. I don't think anyone will regret this purchase, just understand that it is not an insulated softshell vest.

Scott Schmutz at on 09/03/2012

Quickly becoming a cool weather staple

I saw the women's version at an REI and kept looking for the mens version. found the men's jacket and tried it on and it quickly warmed up, but i really wanted a vest. ordered it online as soon as i got home.

Its awesome! i use it almost daily as a midlayer when i'm out and about or hiking. Keeps me warm without making me feel bulky or restricting my movement. extra pockets are a plus as well!

Its extremely lightweight. when i take it off on hikes, i have to put it under my pack to prevent it from blowing away.

I would def recommend the ATOM series to a friend.
Todd the explorer at REI on 11/11/2010

Very light and compact

I travel long distances by motorcycle, where warmth, wind protection, and packing volume are important factors. Recently, I lost a beloved windblock fleece vest that accompanied me on an 11,000 mile trip to Alaska. This loss provided an opportunity to replace a garment that was beginning to get threadbare. The Arc'teryx Atom LT Vest makes a superb replacement, just as warm, but it takes up less than half as much space when packed. A 10" Eagle Creek Pack-it cube is a perfect fit for the rolled up vest.
LD Rider at REI on 04/04/2012

I'm on my third Atom LT Vest after buying one a couple years ago, but all three are in great condition. I use one for skiing (primarily on top of a quarter-zip and below a shell on those 20/30 degree days), one for hiking as a standalone on top of a LS thermal, and one for tooling around town. Freedom of motion is unparalleled with this as your outer layer, but 60g of coreloft suddenly feels like nothing. For me, the weight tradeoff is a positive.

jduran at on 12/12/2013

I own alot of Arcteryx. This is a great piece. I am 6' 175lb with an athletic build. The medium fits perfect. I can use it under my Atom SV ( size large) for additional layering on cold snowshoeing or hiking initiatives. It works well layering under a Gamma MX softshell. Even over a baselayer during the shoulder seasons. It breathes incredibly well , is much warmer than you'd think given its weight, and is a no brainer to bring with based on packability

ric4594537 at on 02/06/2013

My absolute favorite outerlayer Item, I have had a number of coats and vests form various brands but this is by far the most comfortable. Great for everything from running around town to spring backcountry exploits where a coat is just to much for the hike. Love it. I have last years model and it has held up to more abuse than any article of clothing ever should. Still looks feels and acts like new. Amazing product from a great brand.

ersp66809 at on 10/04/2012

Negative Reviews:

I bought this vest in XL and ended up returning it due to what I would consider a defective wind flap. The flap sits behind the main zipper and because its not rigid, it catches in the zipper every time I zipped it up and down. You can imagine how annoying that is. You can pull it away from the zipper and that obviously prevents it from catching. The material and design are great otherwise, and the wind flap defect ruin an otherwise stellar layering piece. Frankly I am hoping they somehow hear this feedback and fix it because I would snap it up then.

mno3751438 at on 10/22/2013