Ahnu Women's W Sugarpine Waterproof Hiking Shoe 100% Leather and Textile Imported Synthetic sole Ahnu's waterproof, breathble technology Vibram non-marking outsole provides grip and traction on varied surfaces Numentum Hike technology with a lateral to medial TPU heel clip for neutral positioning and stability Dual density EVA, removable footbed provides extra shock absorption with heel and arch support Intergrated nylon shank and arch support provide torsional rigidity and mid foot support