Babolat has re-engineered the Jet Mach III to provide players with confidence and speed on court. Matryx EVO technology combines Babolat's Stability arch system and new materials to give you enhanced performance and comfort. The KPRSX system allows better cushioning while a softer, shock-absorbing EVA foam and the heel rocker provides better support and protection for your heel. For the length of the shoe, it fits a touch small, it's advised to go a half size larger. Overall, the Babolat Jet Mach III tennis shoe is as fast as ever with better support and great cushioning so you can play for hours comfortably.