SPECS & TECH• Waterproof full-grain leather upper with abrasion resistant heel kicker for extra durability• Breathable Waterproof Plus membrane ensures feet stay dry and comfortable• Moisture wicking mesh lining• 400 gram Thinsulate Ultra insulation for warmth• Wolverine EPX anti-fatigue technology brings comfort closer to the foot and cushions each step• Ultra-light compression molded EVA midsole for support• Vibram Artic Grip lug outsole is designed to perform on wet ice•