When the peaks beckon to you in the middle of winter the Northwall Mitts are an essential on the pack roster. The durable yet lightweight nylon shell provides rugged defense against sharp tools and the breathable Ventia insert vents easily when you are working hard. Abundant EnduraLoft insulation in the shell keeps your fingers moving while on belay and the Moonlite Pile fleece liner can be removed at camp to dry out in preparation for the next ascent. Perfect winter mountaineering mitt for everything but the highest altitudes