Winter hiking, fall camping, relaxed recovery days – the Atom Shacket keeps you warm. Insulated with Coreloft™, a synthetic insulation made with 80% recycled content, it delivers breathable thermal performance and packs up small. The Tyono™ 20 face fabric resists wind and is treated to repel water, and the length – this is the longest Atom – extends coverage. The look is classic mountain, and the relaxed fit and articulated patterning elevate comfort and mobility.