Touted as one of the lightest running shoes when it hit the market in October 2013, the Free Flyknit+ fuses a dynamic combination of Nike innovation. Featuring a precision fit, seamless Flyknit upper, feet stay cool and dry as the material adapts to each stride. Down below, all 52 muscles of the foot are set free with the barefoot-like feel of the Nike Free sole. Providing flexibility and neutral support, the 'Wolf Grey' shoe strikes a balance between performance and comfort.