evo.com | Arc'teryx Synthetic > The Arc'teryx Atom Jacket packs Coreloft insulation and an eco-friendly DWR finish into a versatile piece that excels from crag to summit. Layer it under a shell for winter missions or wear it solo - this adaptable midlayer keeps performing when conditions get damp. Stretch Fleece 94% Polyester / 6% Elastane Stretch-Knit Cuffs Face 100% Nylon Tyono(TM) 20 Denier Shell with FC0 DWR Treatment This product may contain chemicals known to the State of California to cause cancer, or birth defects, or other reproductive harm. 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. | Arc'teryx Atom Jacket Men's 2026 - 2X-Large Black | Nylon/Elastane/Polyester