The Arc'teryx Atom SL Jacket is the lightest, most packable Atom jacket designed for big efforts in cold, wet conditions. This is one of the most useful pieces you can own—whether you're layering it under a waterproof shell for mountain pursuits or wearing it as a standalone layer on trail runs through unpredictable weather.
Our model Lilah is wearing a size S. She is 170cm tall.
Regular Fit
Lighter than the original Atom, this jacket maximizes packability while delivering focused warmth to your core. The breathable, weather-resistant design features stretch insulation in the body but not the sleeves, giving you the perfect balance of warmth and mobility.
Fortius™ Air 20 face fabric balances air permeability and weather resistance with lightweight durability and stretch
Stretch synthetic insulation is breathable, warm, and made with recycled content
Lightweight stretch Octa® Fleece side panels provide freedom of movement and improved ventilation
Uninsulated, mesh-lined sleeves regulate temperature and reduce bulk
FC0 DWR (Durable Water Repellent) finish repels moisture and is PFAS-free
Adjustable hem drawcord seals out drafts
Compressible and packable for easy transport
Treated with Polygiene anti-odour biocidal product
Contains bluesign® approved materials with recycled content
Do not bleach
Wash dark colours separately
Double rinse
Do not dry clean
Do not iron
Machine wash gentle low
Do not use fabric softener
Tumble dry gentle low
Do not wring
Size & Fit
Our trimmer fit is patterned to stay close to the body through the chest, waist, hip, and thigh. Its low profile eliminates bulk, moves with the body, and fits comfortably under outer layers.
