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.

Key Features & Technical Specifications

• Insulation: breathable Coreloft™ Compact synthetic fill, designed to keep insulating when damp
• Face fabric: lightweight Tyono™ 20 wind-resistant nylon on core Atom insulated models
• Ventilation: breathable stretch-fleece side panels on full-sleeve Atom models
• Weather: DWR finish sheds light precipitation; not waterproof
• Movement: articulated fit for climbing, hiking and layering
• Design: non-hooded profile layers neatly beneath a shell
• Coreloft™ synthetic insulation for damp-weather warmth