The Nike Air Huarache Ultra is made from an elastic, one-piece upper material. The outer material is seamless. The sole of the trainers is core in various areas, thus reducing the weight of the shoes. In the heel area is the air element, creating an excellent cushioning. The integrated Flywire fibres ensure optimum hold and flexibility. The midsole of the trainers is made of foam, which improves durability. In addition, there are flex notches in the outer sole.