Higher Ball Speed For Maximum Distance. Bridgestone have reinvented the Tour B XS to feature new REACTIV cover technology. Until now you had to choose more distance or more spin. With REACTIV you can now get more distance and more spin out of the same golf ball. Designed to fit golfers with tour fast swing speeds of over 105mph, the new Tour B XS has softer feel and maximum greenside spin, allowing you to stop approach and pitch shots on a dime. Consistent flight and performance in the Tour B balls are a result of the proprietary Seamless Cover Technology. Designed and played by Tiger Woods, the choice of a true champion.