Dustin, these skins have a set length bracket since there's no folding through a tip loop to adjust for your skis; that's why they come in S, M, L etc.

Pick up the xShort length. Get a width that is close to the widest part of your ski, then open a beer. Trim the width with the included Skin Cutter. It's super easy.

x short 153 - 163 70, 85, 100, 115, 130, 140 411g / 14.5oz - 656g / 23.2oz Short 162 - 172 70, 85, 100, 115, 130, 140 431g / 15.2oz - 694g / 24.5oz Medium 171 - 181 70, 85, 100, 115, 130, 140 451g / 15.9oz - 732g / 25.8oz Long 180 - 190 70, 85, 100, 115, 130, 140 471g / 16.6oz - 769g / 27.1oz x Long 189 - 199 70, 85, 100, 115, 130, 140 492g / 17.3oz - 807g / 28.5oz

you buy skins based on the width of your skis not really the length as the skins are cut to fit the length of the ski by you. You can either measure the tip of your ski and buy skins that wide or measure the middle of the ski and buy that width. If you buy skins based on the middle width you won't have full coverage and may slip in icy conditions. I always buy skins based on my tip width.