The "X" variation of Srixon's Z-Star is a higher compression ball with a firmer cover, making it perform best at swing speeds above 105 mph. The 0.5-mm cover includes 324 aerodynamic dimples with Invisiseam technology for consistent flight on every shot.
PKLOWE - 5/14/11 love them! did play prov1x but now after 3 drives of 300 plus and i have never come close to that , 281 being my longest before i only play these now and for half the price , wow! what a winner.