Sorel - Bear (Black) - Women's: Durable weather and wind resistant polyurethane backed 1000 denier Cordura(R) nylon. Drawstring with barrel lock closure. Removable 9mm ThermoPlus(R) felt InnerBoot. 2.5mm bonded felt frost plug in the shell to provide an extra layer of insulation and warmth. Handcrafted, waterproof vulcanized rubber shell. Aerotac(R) sole (natural rubber). Shoe weighs 34.2 oz. Height 14 inches. Imported. Sorel Rated:-40F/-40C.