Design: Nubuck leather upper for a comfortable, durable fit B-Dry waterproof membrane keeps moisture out while maintaining breathability Freeze Guard 200g insulation 100% recycled polyester webbing and laces Board-lasted for added stability In-Shoe Comfort: 50% recycled polyester lining O FIT Insole® delivers top tier fit, feel, and performance Single density EVA midsole with TPU shank Durability & Traction: Vibram® XS Trek outsole + Arctic Grip Pods provides reliable traction through ice, snow, sleet, and slush Additional Details: Leather upper from a tannery rated Gold by the Leather Working Group for environmental responsibility Heel Rise: 8mm Weight: 19.4 oz. / 550 grams