nike free run is one of the final couple of years probably the most popular Nike fans preferred Nike operating shoes. The forefoot of Nike Free Run is developed by outside shading Road Waffle waffle, prominence on the friction block, using the grip makes it perfect for operating, and may spread the effect force, generating running a lot more comfortable. Nike No cost Shoesheel is use BRS1000 carbon fiber rubber, abrasion resistance, grip great, however the intense friction will leave black marks on the ground.