The ultra-light Yaktrax Pro employs a unique, spikeless, patented coil design to instantly give you better traction, confidence, and safety on packed snow or ice. Move about naturally with the same solid grip that you are accustomed to on dry surfaces. Walk or run as you normally would and experience stability on ice and snow like you have never felt before. Made with high-strength, abrasion-resistant 1.4mm steel coils and heavy-duty natural rubber material, the Yaktrax Pro easily conforms to the shape of your boot or shoe for easy on and off. With its patented SkidLock coil design, the Yaktrax Pro provides 360° of traction on packed snow and ice and can be worn in temperatures as low as -41° F. Black. Sizes: S (W 6.5-10 / M 5-8.5), M (W 10.5-12.5 / M 9-11), L (W 13-15 / M 11.5-13.5).