Backcountry skiing is where it's at. But in order to really get out there and ski the pow, couloirs, and forge your own trail, you're going to need some high-quality skins. The Black Diamond Ascension Custom Climbing Skins are made from durable grippy Nylon hairs that give confidence-inspiring hold on even the most chewed up and sketchy skin tracks. These skins come in specific lengths but need to be trimmed to your skis before using.