Arcteryx Atom Jacket Women's Size:Extra Large plus three layers of heat-trapping

plus three layers of heat-trapping materials underfoot

Internal hydration reservoir sleeve with center back exit port

increasing overall warmth by nearly 15%

Light and Packable: Weighs only 6

Arcteryx Atom Jacket Women's Size:Extra Large plus three layers of heat-trappingPerforming as midlayer and standalone across a broad range of activities and output levels, the iconic Atom is an Arcteryx mainstay. Over time, they have refined the design to elevate performance, improve durability and extend its versatility. Its Coreloft Compact insulation retains heat when wet and withstands repeated packing and unpacking. Light, soft and durable, the Tyono 20 face fabric resists wind and weather, and stretch fleece side panels