To simulate the human foot in barefoot condition state of the movement for the idea,running to restore the original feel.The lower the closer the coefficient barefoot barefoot feel,enhance the pace of power,closer to barefoot running,do you know what is the shoe?Nike Free 7.0 Dark Grey White Running Shoes,it not only lets you running fast but also protect your feet from damage.It also can make you feet at the natural state of motion and now on sale in the hot,low price and excellent quality is worth to own.Features:Specific outrigger delivers support and protection.Lightweight, breathable mesh and supportive synthetic upper.Siped Phylite midsole construction offers a barefoot-like feel.Aggressive turf-inspired traction pattern delivers excellent traction on outdoor surfaces.