Black Diamond created the Belay Parka for the most mind-numbing, teeth-chattering days in the mountains. Featuring ThermoLite insulation, this parka is like wearing a sleeping bag if a sleeping bag was harness-compatible and offered full use of our arms. Oversized drop pockets on the inside hold gloves, water, and anything else we might need while belaying, and four zippered external pockets give us a place to store our essentials. The drawcord hem can be cinched tight to lock in precious heat, and the helmet-compatible hood can be tightened around our helmet to keep the cold drafts out. To top it off, the jacket's exterior has a DWR treatment to repel light moisture, and underarm gussets allow for a full range of motion when belaying.