Ahnu Women's Sugarpine Waterproof Hiking Shoe 100% Leather and Textile Imported Synthetic sole Heel measures approximately 2" Ahnu's waterproof, breathable membrane to keep feet dry Vibram non-marking outsole and slip-resistant lugs provide 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 provides extra shock absorption with heel and arch support Integrated nylon shank and arch support provide torsional rigidity and mid foot support