Celebrating 11 years of the Nike Free franchise, the sportswear giant introduces evolved running styles that offer a progression of three natural ride options – Nike Free 3.0 Flyknit, the most natural ride with a snug Flyknit upper and 4-millimeter heel-to-toe offset; Nike Free 4.0 Flyknit, a cushioned, natural ride with a contoured Flyknit upper and 6-millimeter offset; and Nike Free 5.0, the most cushioned, natural ride with an engineered upper and 8-millimeter offset. The new models have eliminated layers, seams and bulk and have harnessed the natural motion of a runner’s feet and body, giving them a more natural running experience. The Nike Free 4.0 Flyknit and Nike Free 5.0 are available now through NIKEiD. The full 2015 Nike Free Collection will release on April 2. Turn the page for an extended look.