Kahtoola’s traction system is in a class of it’s own. It easily will fit any footwear from ski boot to running shoe with lightening quick adjustment. Lightweight secure footing for a myriad of uses including ski mountaineering, winter trail running, adventure racing, snow making; even gate keepers for alpine ski racing are using them. At 19 oz they are the lightest 10 point crampon available. A unique LeafSpring extender bar & independent front & rear straps allow the system to flex naturally with any footwear. 3 different extender bar lengths are available & can be adjusted without tools! Collapsible design makes them super compact in your pack.