The free running shoes sale emphasizes natural foot movement while delivering an extraordinary feel, combined with the cushioning, traction and underfoot protection of a shoe. Updates to this version of the Nike Free 3.0 make it even better for runners who want to reap the benefits of barefoot training. And soft, microfiber synthetic overlays are bonded wherever possible to minimize stitching and maximize comfort. Overlays balance the fit, durability and support of a shoe with the dynamic flexibility of the foot Molded sockliner mimics the natural curve of the foot for a great fit, comfort and support Soft foam inserts under the forefoot and heel for added cushioning Phylite midsole for durability.