Nomad Pro Trim-To-Fit By Size Skins with Quick Tension Tail Clips are high performance skins that excel in any snow condition. The skin fibers are 70% Mohair / 30% Synthetic Nylon and treated with GLIDE TECH which helps maintain skin glide. These skins come in three sizes and have Quick Tension Tail Clips already attached. They must be trimmed to the width of your Jones splitboard.