Ahnu Women's Northridge Waterproof Snow Boot 100% Leather/Textile Imported Synthetic sole Shaft measures approximately 9.5" from arch Heel measures approximately 1.5" Platform measures approximately 1.0" Waterproof and breathable 200 grams of thinsulate for insulation Vibram non marking outsole for traction and durability Dual density ethylene vinyl acetate removable footbed provides extra shock absorption with heel and arch support