Carry all the weight you can stand through below zero temperatures in the most hostile terrain imaginable. The 1000 grams of Thinsulate insulation combined with a Windtex, waterproof, breathable membrane keeps you warm and dry. Slippery vertical terrain meets its match with the firm nylon midsoles, steel shanks, and high traction K-Talon outsoles. Padded tongues, collars, and a firm yet flexible lacing system cradle you in comfort. Triple stitched one piece vamp uppers are made of thick 2.8 mm top grain leather. 4.5 lbs. Made in Italy.