Sorel - Snowlion (Black) - Women's: Durable weather and wind resistant polyurethane backed 600 denier 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. Rubber lug outsole. li> Shoe weighs 29.6 oz. Height 13.5 inches. Imported. Sorel Rated: -40F/-40C.