Normal wear, marks and wear as shown. Approximately 170 miles on them. Black/Light Smoke Grey/White The Zoom Fly 6 is with you every step of your run. Lighter than the Zoom Fly 5, its responsive ZoomX foam adds energy return to each stride, while a carbon fiber plate helps propel you to the finish line. ZoomX foam, Nike’s lightest and most responsive foam, delivers our most energy return with every stride you take. Full-length carbon fiber plate increases efficiency and responsiveness. Thin rubber outsole is lightweight and grippy on the road.