MountainFlow makes eco-friendly applicants that help skis and snowboards perform as well as possible. Most of the applicants are environmentally-friendly waxes for speedy snowboarding and skiing,but the Skin Wax is actually for climbing skins when you're backcountry skiing or splitboarding. This water-based, non-toxic liquid reduces snow buildup on the bottoms of skins to keep light and speedy from start to finish. MountainFlow recommends spraying this wax before every skin.