Yaktrax SkiTrax Ski Boot Tracks Traction and Protection Cleats make it easier and safer to walk in ski boots on snow, ice, and slippery surfaces. Much more than just traction, the dual-density outsole protects ski boots from wear and tear, ensuring a longer life for gear. They are easy to take on and off of boots, thanks to a thick and durable rubber heel tab. The rocker sole design promotes a natural stride, making it easier to walk around, as well as up and down stairs and hills. The rounded tread offers traction and prevents snow buildup to reduce the risk of slipping in the parking lot, while walking to and from the lifts, and even around the ski lodge. Compact and foldable, a pair can easily fit into a ski jacket or ski pants pocket for portable ski boot traction. The Yaktrax Ski Boot Track Traction and Protection Cleats are available in a range of sizes to fit ski boots of all sizes: X-Small (fits shoe size W2.5-6, M1-4.5); Small (fits shoe size W6.5-10, M5-8.5); Medium (fits shoe size W10.5-12.5, M9-11.5); Large (fits shoe size W13-15, M12-13.5); X-Large (fits shoe size W15.5+, M 14+). Sold as a pair.