Arc’teryx Atom Jacket Women’s is a cornerstone insulating layer for demanding mountain days and everyday cold-weather use. Designed to deliver dependable warmth without sacrificing breathability, the Atom excels on chilly alpine starts, exposed ridgelines, and fast-moving pursuits. Lightweight Coreloft™ insulation provides efficient heat retention while resisting packing out, even after years of regular wear. Stretchy fleece side panels actively regulate temperature, allowing excess heat to escape during high output while maintaining comfort in changing conditions. The fitted, articulated silhouette layers seamlessly under a hardshell, creating a versatile system that continues to insulate even when damp. Updated with recycled Coreloft™ insulation and a PFAS-free DWR finish, this version reflects Arc’teryx’s ongoing commitment to performance-driven sustainability. Thoughtful details—such as a tricot-lined collar, stretch-knit cuffs, and adjustable hem—enhance comfort, mobility, and protection in unpredictable weather.
