Glacier XT Pac Boots from Sorel provide unbeatable warmth and protection during active adventures in extreme conditions. Durable water- and wind-resistant polyurethane-coated synthetic-textile uppers complement the handcrafted, waterproof, vulcanized-rubber shells for complete protection from the elements. Removable 13mm ThermoPlus inner boots with Omni-Heat reflective linings seal out the cold, wick away moisture and reflect and retain the warmth your feet generate, keeping your feet warm and dry. 2.5mm bonded-felt frost plugs underfoot increase the thermal barrier between you and the cold ground. Removable 13mm Sorel Meltdown Midsoles. Sorel Aerotrac nonloading outsoles bite into slippery surfaces for the traction needed to keep you going during the winter months. Keep feet warm down to -100F (-73.3C). Imported. Ht: 16. Avg. wt:6 lbs./pair. Mens whole sizes: 8-13 medium width. Color: Black. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Boots.