Montrail Men's Sierravada Leather Outdry Waterproof Hiking Shoe 100% Mesh/Leather Overlays Imported Synthetic sole Leather hiking shoe with outdry waterproof breathable upper Fluidfoam midsole for enhanced cushioning and flexibility Fluidguide technology for support and a smoother ride on trail surfaces Trailshield outsole protecting your feet against rocks and debris 5mm lug height for aggressive traction