YAKTRAX WALKER SHOE TRACTION. Light duty traction device for safety on packed snow & ice. Easily conforms to shape of shoe or boot. Made with high strength abrasion resistant 1.2 mm steel coils and easy to use polyelastomer material. Can be worn in temperatures as low as -41 deg. F. Easy on/off. Spikeless. Ultralight. Black. Large Fits Men 11.5 - 13.5 and Women 13 - 15.