The matching lower half to our Belay Parka, the Black Diamond Belay Pants are super-warm, insulated puffy pants for teeth-chattering, feet-stomping belay conditions. Designed to be worn over shell pants and filled with lofty ThermoLite® insulation, the Belay Pants insulate even when wet, compress in your pack, and feature full-length side zippers for easy on and off while wearing crampons. An integrated adjustable belt helps you dial in the fit over varying layers.