The Atom Vest adds core warmth without restricting arm movement, making it useful for hiking, commuting and active layering in variable temperatures.

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: sleeveless core warmth for mobility