We use cookies to give you the best experience possible. Your browser is set to block cookies so some features may not work as expected.

Hey there, the rules of web surfing say we need to inform you that we use cookies to give you the best experience possible. By continuing to browse our website you are agreeing to our use of cookies. Find out more in our Privacy Policy.×

Atom AR Jacket


Buy Now

Find A Store

Click to Zoom
Atom AR Jacket Men's Warm insulated Coreloft™ jacket; Ideal for use as a super-warm mid-layer in cold conditions, or as a stand-alone piece in warmer conditions. Atom Series: Synthetic insulated mid layers | AR: All-Round.

Warm insulated Coreloft™ jacket; Ideal for use as a super-warm mid-layer in cold conditions, or as a stand-alone piece in warmer conditions. Atom Series: Synthetic insulated mid layers | AR: All-Round.

Iron Anvil
Tropos Blue
7 Detail Photo(s)
CASUAL;urban;urban play;city life;lifestyle;stylish;TREKKING/ BACKPACKING;adventure trekking;alpinist;alpinists;apparel;backcountry backpacking;backcountry trekking;backpacker;backpacking;backpacking trails;backpacking trip;backpacking trips;equipment;gear;high alpine;mountain;ski backpacking;travel;traveling;travelling;treking;trekker;trekking;trekking trails;trekking trips;trekking trips;Wandern;TRAVELLING;commute;commuter;travel;travelling;traveling;journey;urban;city travel;city;business travel;business;INSULATION;body heat;body temperature;bonded poly;comfort;core temperature;fleece;fleese;hardface;heat retention;heat transfer;loft;insulated;insulation;insulation layer;insulation piece;layering;loft;polartec;prima loft;primaloft;thermal;thermal pro;warmth;polar fleece;LIGHT WEIGHT INSULATION;feather weight;featherweight;light weight;lightweight;super light;superlight;ultra light;ultralight;ultra-light;JACKET COLD WEATHER; cold weather running jacket; winter running jacket; winter trail running jacket; cold weather trail running jacket;JACKET INSULATED;insulatedJACKETS;anorak;anoraks;coat;coats;jacke;jacket;jackets;outerwear;parka;parkas;poncho;ponchos;vest;wind jacket;windjacket;windshell;wind shell;ALL PRODUCTS;all;everything;entire;collection;ARC; all products;arc teryx;arcteryx;arc'teryx;B.C.;bc;british columbia;canada;equipment;gear;innovation;innovative;outdoor;outdoor gear;performance;quality;sports equipment;technical;vancouver;COMPRESSIBLE;compact;compressible;compressibility;compression;pac lite;packable;paclite;pac-lite;GENDER FEMALE;damen;femme;femmes;gender specific;ladies;lady;woman;women;women specific;womens;women's;MID LAYER;midlayer;mid-layer;middle layer;SECONDE COUCHE;seconde-couche;MOUNTAINEERING;mountaineering;mountain climbing;HIKING;adventure hiking;alpine;alpinist;alpinists;apparel;backcountry;backpacker;backpacking;equipment;gear;high alpine;hike;hiker;hikers;hiking;hiking climbing;hiking equipment;hiking route;hiking trip;hiking trips;mountain;mountain hiking;mountain top;mountaineering;mountains;outdoor adventures;peak;rambling;road hiking;scenic hiking;scramble;scrambling;trail;trail walking;trailhead;trailhead hiking;trails;walking;walking trails;wilderness;Randonnée;Randonnee;Randonée;Randonee;
S, M, L, XL, XXL
420 g / 14.8 oz
Athletic Fit, Hip Length
Sizing Chart: 


Significantly warmer and more protective than a fleece jacket, this insulated jacket is breathable enough to be used as a super warm mid-layer on frigid days and protective enough to be an outer layer while belaying or hanging out at camp. An extra thick dose of synthetic Coreloft™ insulates but packs small.

Learn More About This Product

Arc'teryx Coreloft™ Insulation

Coreloft Fibres Coreloft™ insulation

Developed by Arc'teryx, Coreloft™ is a synthetic insulation made of staple fibres in mixed sizes that are crimped to trap air and retain warmth. Available in different thicknesses for end-use performance and comfort.

Key Advantages

  • Lightweight and highly compressible
  • Durable and resilient
  • Retains its warmth in humid and wet conditions and dries quickly if wet

Arc'teryx Fit Guide - Athletic Fit

Standing in as our “Arc’teryx Standard” fit, the complex patterns used utilize anatomical shaping and gussets to enhance motion and eliminate excess bulk. Trimmer than the Relaxed fit with room for a base layer, a light fleece mid-layer and a synthetic or down filled mid-layer.

To find out how to calculate your body measurements, view our Sizing Charts:

Men's Tops | Men's Bottoms
Women's Tops | Women's Bottoms


Insulated mid layers made with hydrophobic synthetic material that resists absorbing moisture. Outer fabric has a water-repellent finish.

AR | All Around

Provides high performance & weather protection and highlights a range of features to give All Around versatility in multiple activities.

Full Feature List

  • Moisture-resistant outer face fabric
  • Breathable
  • Great warmth-to-weight ratio
  • Lightweight
  • Durable
  • Wind resistant
  • DWR finish (Durable Water Repellent) helps repel water from fabric surface
  • Composite construction
  • Articulated elbows
  • Gusseted underarms
  • Athletic fit for a slimmer more flattering profile
  • Tall collar
  • Insulated collar
  • Full front zip with insulated wind flap
  • Stretch-knit cuffs
  • Drop back hem
  • Adjustable hem drawcord
  • Internal chest pocket with zip
  • Two hand pockets with hidden zippers


  • Coreloft™ 80 (80 g/m²) insulation. Made with highly crimped multi-denier siliconized polyester yarn, this lightweight, breathable, and thermally efficient, 100% polyester staple fibre is very compressible and has excellent loft retention.
  • Tyono™ 30 denier shell with DWR treatment - 100% nylon
  • Coreloft™ 120 (120g/m²) insulation


  • Machine wash in cold water on a gentle cycle
  • Do not bleach
  • Tumble dry on low heat on a delicate setting
  • Do not iron
  • Do not wring
  • Do not dry clean
Product Reviews
Questions & Answers
Find a Store
Help & FAQ
Our Story
Contact Us
About Us