Men's Atom SV Hoody - Black SapphireDESCRIPTION The warmest jacket in Arc'teryx's Atom family made with industry engineers, scientists, and hardcore athletes who understand that staying warm is staying safe. With thermo mapped insulation that strategically traps and dumps heat, so you won't get soggy even when you're working for that summit. A cornerstone of an all conditions layering system, the Atom SV Hoody delivers serious protection on its own, and teams up with a hardshell to keep