The Arc'teryx Atom Vest is the ideal layer for outdoor adventures. Advanced Coreloft™ insulation delivers exceptional warmth even in damp conditions. The wind-resistant Tyono™ 20 face fabric features a durable water repellent finish. Stretch fleece side panels improve mobility and breathability during high-output activities. Zippered pockets offer secure storage for essentials, and the vest packs down small for easy carrying.