The new Mizuno ST-X is a draw-biased carbon composite construction aided by a heel side sole weight. Built upon the 2nd generation of Mizuno's Forged SAT2041 Beta Ti face � for potent ball speeds and consistent performance over time. As a high strength Beta Ti, SAT2041 maintains its characteristics and resists micro fractures for longer than the commonly used 6-4 Ti. The new multi-thickness face structure is refined to maximize ball speeds, most noticeably improved low on the clubface. The optimized wave sole plate delivers addional contribution to ball speed. Added weight in the heel area provides a reliable draw bias. If you would like to customize the shafts, grips, lengths or lies give us a call or send an email to Tom@dallasgolf.com. Standard Mizuno warranty applies and satisfaction is guaranteed.