This casual all-purpose boot is built on a last designed for women for ultimate fit and comfort. Features include: new XpressCool lining material to keep your feet cool in warm weather. 4mm CR flex-foam bootie with four-way stretch nylon. 100% waterproof, light-weight and flexible. EVA midsole. New lightweight EVA outsole with rubber pods for optimal traction and support. Sockliner to reduce friction and heat build up.