Patagonia's DAS Light Hoody should be a core piece in any alpinist's layering system. An ultralight hooded belay jacket featuring PlumaFill synthetic insulation, it delivers down-like warmth and compressibility, yet maintains performance if it gets wet. The hood is helmet compatible, a two-way zip provides access to your harness belay loop. For easy transportation, it also stows into the hand pocket. Patagonia Men's DAS Light Hoody - Nouveau Green