Patagonia Das Light Pant

For belaying in the spindrift and stormy bivies, the DAS Light Pants are packable, ultralight and built to move. With PlumaFill synthetic insulation that's warm even when wet, a recycled nylon shell with a weatherproof PU coating and full side zips for easy on-off, they're a must-have for long, committing alpine climbs where every gram counts.