No need to wait for someone else to make first tracks with the Keen Revel IV High Polar Leather/Synthetic Men's Insulated Hiking Boots. Keen gave their waterproof winter boots a higher profile for deeper powder and their warmest insulation rated to -40AdegF. These boots not only feature more comfort but better grip for snow and ice.FeaturesNon-marking multi-directional lugs for increased traction5mm multi-directional lugs for tractionStability shank delivers lightweight supportKEEN.WARM Recycled PET insulation rated to -40AdegF/-40AdegC400g of KEEN.WARM insulationKEEN.DRY waterproof, breathable membraneEco Anti-Odor for natural odor controlEnvironmentally preferred premium leather from LWG-certified tanneryWaterproof leather and performance mesh upperKEEN.Polar Traction outsole for more grip on snow and iceCompression-molded EVA midsole for cushioningBreathable textile liningThermal Heat Shield insole captures warmth