A cold weather boot that keeps you warm when the weather outside is frightful.This brand is a member of the Sustainable Apparel Coalition.Leather/mesh upper keeps your feet protected.450g KEEN.WARM™ insulation in the toe area and 350g throughout the rest of the upper.KEEN.DRY™ breathable and waterproof membrane.Speed hook lacing system.Thermal heat shield footbed.Moisture-wicking textile lining.Molded rubber Shellback™ heel support.Dual Climate rugged and non-marking rubber outsole reacts to cold weather by hardening for a tough grip on packed snow.