thermoplastic elastomer - CLEATS/STRAPS: Ice cleats with 11 multi-directional steel studs and fixed strap can provide excellent traction, reduce the risk of falls and increase safety when walking on snow and ice. - HIGHLY ELASTIC: Snow cleats made of thermoplastic elastomer material, highly elastic, stand up to hard use and remain flexible in frigid temperatures. - DURABILITY: Full-sole coverage provides 360 degrees of traction for everyday activities like walking the dog and shoveling the driveway, thick rubber ensures long-lasting comfort and durability. - EASY WEAR / PORTABLE: Traction cleats can stretch out far enough to cover most shoes and boots, lightweight enough to carry for hiking fishing or any other outdoor activities easily. - WIDELY USED: Crampons ice cleats suitable for shoes boots men women, ideal for mud, ice / snow conditions, great for snow shoveling, ice fishing, walking, hunting, hiking etc. Specifications: Type: Ice Grippers Material:Manganese Steel Nail / Elastic Silica Gel Color:Black,Clear Size: M: 22 / 13 cm(8.66 / 5.12 in), weight: 219 g, suitable for shoes in sizes 35-39 L: 22.5 / 14 cm(8.86 / 5.51 in), weight: 229 g, suitable for shoes in sizes 40-43 XL: 23.5 / 14.5cm(9.25 / 5.71in), weight: 245g, suitable for shoes in sizes 44-47 Number of Steel Nails:11 Teeth Use scene: Ice, Snow, Muddy Road, Wetland, Grassland, Icy Road, Etc