Light, versatile synthetic insulated jacket works as a midlayer and standalone. Atom Series: Synthetic insulated midlayers. *The Atom Jacket was previously the Atom LT Jacket. ATOM JACKET Light, packable and proven, the Atom – an Arc’teryx icon – is a performance warming layer for backcountry adventures, alpine ascents and downtown commutes. Refined for its next generation, we elevated its performance and extended its versatility. The Coreloft™ Compact 60 insulation retains heat when wet and withstands repeated packing and unpacking. The soft, durable Tyono™ 20 face fabric resists wind and weather, and stretch fleece side panels improve ventilation and freedom of movement. As an alternative to synthetic fill insulation, we also offer down fill products, such as the Cerium Jacket. ATOM JACKET MEN'S | ALPINE COUNTRY LODGE | ST. JOHNS,NL