evo.com | Arc'teryx Synthetic > The Atom SL Jacket delivers focused insulation where you need it most, with recycled materials and breathable side panels. From trail runs to mountain missions, it's the minimalist layer that performs without the bulk. Adjustable Hem Two Hand Pockets with Hidden Zippers Fitted A 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 first layers or under outer layers. Fortius(TM) Air 20 Nylon Liner Lightweight, breathable, and made with recycled content. Stretch Synthetic Insulation Breathable, warm, and light, adds freedom of movement, and is made with recycled content. | Arc'teryx Atom SL Jacket Men's 2026 - Medium Black | Nylon