This innovative running shoe gets structure and support from Nike Flyknit. The result? An incredibly lightweight shoe with a second-skin fit to take you across the finish at a record pace. - One-piece knit upper seamlessly integrates areas of high support, stretch, and breathability where you need them most without adding weight. - Lightweight Flywire wraps the foot and is adjustable through the laces, providing a customized fit. - Full-length Phylon with a Zoom Air unit for lightweight, responsive cushioning. - Waffle skin rubber in the outsole features a racing-specific diamond pattern for lightweight durability and traction. - Wt. 6.2 oz. - Powered by Solid Commerce - Thefor Online Merchants