NEW REACTIV X System combines the REACTIV iQ Smart Cover Technology with XCLRNT mid-layer for INCREASED DISTANCE off the tee and IMPROVED FEEL and CONTROL around the green. MORE DISTANCE: REACTIV X System creates intensified rebound on tee shots, delivering explosive velocity and increased distance. MORE CONTROL: REACTIV X System stays on the face longer on approach shots, providing more spin and soft feel around the green. The TOUR B X delivers increased ball speed for MAXIMUM DISTANCE off the tee and HIT & SIT performance on approach shots Bridgestone Golf is the #1 BALL FITTER IN GOLF: The TOUR B X is ideal for players with swing speeds OVER 105 MPH who want additional distance.