Nike Free Run 3 with a new structure and the improved upper arch design that is closest to barefoot feel of a Nike running shoes, helping to maximize feet of natural force, and increase the flexibility of the foot. Compared Nike free5.0, nike free 3.0 seamless upper construction, seamless upper construction, provide the necessary supportive. Depending on its feet contour shaping insole designed to bring good fit, but will also enhance the comfort and supportive. In addition, the site is located in the tarsal and oblique cutting transversely across the entire arch area to help exercise the footsteps of flexibility and strength.

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