The Nike Air Huarache Ultra Women's Shoe is crafted with a stretchy one-piece upper, seamless molded details and an ultra-lightweight outsole for a streamlined look and easy packing into your bag. Seamless one-piece woven upper is sleek and breathable. Internal Flywire cables offer flexible, locked-down support. Contoured Phylon midsole provides durable, lightweight cushioning. Encapsulated Air-Sole unit delivers extra comfort. Flex grooves in the outsole provide an ultra lightweight and flexible feel. Runs true to size.