Sorel Men's Bear Boot

Built for extreme cold this Sorel boot features a removable ThermoPlus? liner and underfoot insulation. Rated to -60?F -51.1?C. UPPER: Durable water and wind resistant PU backed 1200 denier Cordura? nylon Drawstring with barrel lock closure INSULATION: Removable 9mm ThermoPlus? felt InnerBoot 2.5mm bonded felt frost plug MIDSOLE: Sealed 6mm ThermoPlus? felt midsole for added warmth