Air Max Flyknit Racer - University Red/Black/Wolf GreyPerfect for everyday wear, the Nike Air Max Flyknit Racer makes an impression with its Flyknit upper and seamless collar. Taking inspiration from the 2012 FK Racer, the design incorporates an array of synthetic leather accents in addition to Max Air cushioning and a foam midsole. A rubber outsole underneath secures the design. Flyknit upper Seamless collar Synthetic leather accents Foam midsole Rubber outsole All sizes are listed in U. S. Mens sizing