Along with other innovations announced today, Nike introduces the next generation of Free technology with the Free Motion RN Flyknit. Based on research revealing how the foot expands and contracts upon impact with and liftoff from the ground, Nike Running developed a brand-new splaying midsole with geometric tri-star forms mimics how the body and foot react to force throughout your run. The sole also features a strategic dual-density blend of foams fused together using heat instead of glue to reduce weight and waste. Sitting atop a Flyknit upper, the end result of the Free Motion RN Flyknit offers the most dynamic and natural ride yet. Stay tuned for release details on this innovative new Nike Free runner.