Arc’teryx Atom Jacket Black. Crafted from lightweight Tyono™ 20 shell fabric, the Arc’teryx Atom Jacket is designed as a versatile insulated layer for high-output activities and everyday wear. Coreloft™ synthetic insulation delivers reliable warmth even in damp conditions, while stretch fleece side panels improve ventilation and freedom of movement. The streamlined fit works equally well as an outer layer or under a shell, combining technical performance with minimalist Arc’teryx design.
