Built for smooth runs, Nike's Infinity Run 4 provides plush comfort underfoot thanks to its new ReactX foam that delivers 13% more energy return compared to React foam. Retuned with a breathable upper and Flyknit tongue, the runner gets coated in a 'Dark Smoke Grey' with 'Metallic Gold' Swooshing. A curved outsole features increased rubber for amplified traction and durability mile after mile. | DR2670-006 | This product is made with at least 20% recycled content by weight, Textile & Synthetic Upper/Synthetic Sole.