The third iteration of this running staple is a triple threat of comfort, strength, and support. Everything you need to break the tape well ahead of the pack. Nike Flyknit upper is breathable, stretchy, and supportive for the perfect fit. An integrated tongue stays firmly in place while you run. Plush collar huge your heel while a contoured sockliner supports your foot from underneath. Lunarlon foam midsole provides responsive cushioning. Pressure-mapped outsole with flex grooves encourages natural motion and comfort. Wt. 8.1 oz.