Arc'teryx Atom SL Mens Jacket 2026

Arc'teryx lightest insulated jacket excels in all mid-output mountain activities. From shoulder-season hikes to easy winter runs, its recycled stretch insulation delivers targeted warmth to your core without limiting mobility. Uninsulated sleeves and stretchy, fleece-lined side panels boost breathability and make for easy overhead movements. Made for hikers. Loved by athletes, runners, skiers, and guides.

Features

• Lightweight stretch Octa® Fleece side panels provide freedom of movement and improve ventilation
• Durable, lightweight Fortius™ Air 20 stretch nylon plain-weave face fabric for maximum airflow
• Ultra-breathable, 100% recycled stretch Coreloft™ synthetic insulation keeps your torso warm
• Uninsulated sleeves for reduced weight, extra arm mobility, and easy packability
• Dual hem cinches seal out drafts and adjust length

Materials

• Shell: Bluesign Approved Material, 88% nylon, 12% elastane
• Contrast: Recycled Content Insulation, 100% polyester
• Insulation: Recycled, 100% polyester
• Lining: Bluesign Approved Material, 88% nylon, 12% elastane