Why slow down when you can Showdown? The premium fourth edition to this sprint spike features FLEXFILM overlays and an ISOFIT lacing system that helps keep you securely fastened to the full-length 10-Pin Pebax ® spike plate. Get ready to rip up the track and the record books in this elite racing shoe.Overview?ISOFIT system provides stabilizing support while adapting to the movement of the runner's foot?FLEXFILM upper is lightweight and supportive?10-pin Pebax® spike plate provides unrelenting grip on the trackTechnology?FLEXFILM Overlays?10-Pin Pebax® spike plate?Weight: 5.7 oz. | 161 g.