Nike Zoom Alphafly NEXT% 'Ekiden' Running Sneakers. Men's 8.5/Womens 10 Original Box included. Full-length ZoomX foam offers an ultra-lightweight and responsive ride. It’s built for speed but also provides cushioning to stay fresh even in the late miles of a marathon. It offers comfort where you need it. Part of the Flyknit family?Atomknit material on the upper has a contoured fit while being lightweight and super-breathable. Specifically designed lofted heel pods use Flyknit yarns for secure, extended comfort and lightweight heel lockdown. Notched laces offer a secure, but soft lace-up. An integrated knit tongue with lofted padding make for a secure, repeatable fit that helps reduce lace pressure.