Fitting over all types of common footwear, the Kahtoola Traction System KTS is the ideal lightweight aluminum crampon for hiking and train running while wearing running shoes, hiking boots, snowboarding boots, ski boots, and more. Straps and quickrelease buckles on both the toe and collapsible heel pieces make the KTS easy to adjust. Best of all, these durable crampons weigh in at a mere 19 oz per pair, so they wont slow you down on snow and ice. When youre not wearing them, he KTS folds into a compact package.