Babolat-Men`s Propulse 4 All Court Tennis Shoes White/Blue-() The fourth generation of this high-tech performance shoe, the Babolat Men`s Propulse 4 All Court Tennis Shoe is designed for explosiveness on the court. Equipped with Side 2 Side technology, the Propulse 4 promotes faster, more efficient footwork... Lateral Stability System | Cell Shield Material | Footbelt System Size - (11.5) | Color - (White) Authorized Babolat Dealer. All racquets are strung and ready for the courts! SEE SELLER DETAILS FOR RETURN POLICY.