Nomad Trim-To-Fit By Size Skins with Quick Tension Tail Clips are made for backcountry touring in any snow condition. The skin fibers are 70% Mohair / 30% Synthetic Nylon which offers balanced glide, grip and durability. This skin model is ideal for non-Jones splitboards. They require trimming to the length and width of your split, and the Universal Tail Clip must be attached using rivets.