Hooded Proton

Designed for mountaineers, but not just on rock and ice, the Proton Hoody is the ultimate breathable insulation layer for high-output mountain missions. 80gsm PrimaLoft Gold Active Vent insulation works with the breathable face fabric and lining to regulate temperature and vapor buildup. The Fortius Air 20 nylon shell is lightweight and durable, articulated patterns eliminate restrictions, and a helmet-compatible insulated hood extends warmth.