Ahnu Women's North Peak Event Waterproof Mid Hiking Shoe 100% Leather/Textile Imported Synthetic sole Shaft measures approximately 3.93" from arch eVent breathable waterproof bootie Waterproof leather and hydrophobic mesh upper Vibram Duragrip outsole with multi-directional lugs for durability and traction in all environments Direct attached polyurethane midsole for extended comfort and durability Numentum Hike technology for neutral positioning and stability