The lightest sprint spike in our line, the Elite model of the SonicSprint was created for our elite sprinters, combining lightweight performance with a snug fit that feels like an extension of your foot. The new sprint plate is made of a super light composite called "fastglass" that allows the perfect amount of rigidity for creating power. The removable 6-pin spike configuration is positioned to the exact needs of sprinters for start, drive and finish. The upper of the Elite model features super light Mono-Mesh and thin TPU overlays with soft skin lining for barefoot comfort. Comes with 6mm pyramid spikes and wrench.