Performing as midlayer and standalone across a broad range of activities and output levels, the iconic Atom is an Arc‘teryx mainstay. Over time, we have refined the design to elevate performance, improve durability and extend its versatility. Its Coreloft™ Compact insulation retains heat when wet and withstands repeated packing and unpacking. Light, soft and durable, the Tyono™ 20 face fabric resists wind and weather, and stretch fleece side panels improve ventilation and freedom of movement.

The Atom Jacket was previously the Atom LT Jacket.

Size and Fit Tips: Fitted Fit - This 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 over our first layers. This model's fit has evolved. Before you check out, please make sure to reference our sizing chart to determine your correct size.

DETAILS

Best For: Hiking, Everyday
Fitted
Moisture-resistant outer face fabric
Breathable
Lightweight
Compressible and packable
Insulated
Wind resistant

Collar Configuration

Mid-height collar is insulated and fleece-lined, layers well

Construction

Performance stretch fleece side panels give ventilation
Resilient Coreloft™ Compact 60 insulation is breathable, warm, and light, performs if wet, and delivers loft retention that resists packing out
Light, soft Tyono™ 20 is air permeable

Cuff & Sleeves Configuration

Stretch-knit cuffs
Cuff construction increases durability, eases layering and removal

Design & Fit

Trim fit for base layer or light mid-layer use

Fabric Treatment

DWR (Durable Water Repellent) finish repels moisture

Hem Configuration

Dual lower hem adjusters
Drop back hem
Laminated hem

Pocket Configuration

Two hand pockets with hidden zippers
Internal chest pocket with zip

Sustainability

Dope dyed lining fabric
Contains materials that meet the bluesign® criteria
Biocidal Disclosure - This model was treated with an anti-odour biocidal product (Active Ingredient: Silver Nitrate)

Zippers & Fly Configuration

No Slip Zip™ front zipper
Custom TPU zipper pulls are easy to operate and glove-friendly

Arc'teryx Women's

Women's Beta Jacket

Women's Atom Jacket