Men's Xero® Alpine :: Now you don't need to sacrifice comfort and natural movement when the temperature starts to fall and snow is in the air (and on the ground). Designed for winter use, hiking, snowshoeing, after skiing, and all your winter adventures. * 3.5mm lug tread for confident traction * 200g/sq. in. insulation, rated to -25 degrees /-32 degrees C * Fully waterproof to keep you dry * 100% vegan-friendly materials * DROP: 0 mm