<ul> <li>The outsole has at least 13% Nike Grind material, made from scraps from the footwear manufacturing process.</li> <li>Flyknit gives you sock-like comfort with soft, stretchable and breathable fabric that helps keep you feeling light and airy when your run goes into overdrive. Inner sleeve is minimal but stretchy.</li> <li>An ultra-lightweight midsole offers unreal comfort as your foot repeatedly hits the road. It’s lighter, more responsive and softer than previous versions.</li> <li>Embroidered eyestays around the laces help keep your feet secure. Pull tabs at the tongue and heel make for an easy 1-hand entry.</li> <li>Laser-cut grooves on the sole make this shoe more flexible.</li> </ul>