Made with a waterproof foot and a water repellent double-layered, flexible shaft; Hook and loop shaft closures can be adjusted for a wide range of calf sizes; Wear patch on the inner calf in case you need to jump in the saddle or want to take a snowy trail ride; Insulated inner sole and non-skid outsole with grip sure pattern for extra traction; Synthetic fur lining for superior warmth; Material: 600 Denier polyester canvas; Insulation: Multi-layer fleece, wool, and aluminum foil heat shield; Aluminum foil heat shield on bottom