Mizuno spent four years developing, testing, and creating multiple iterations that improved stability, spin, and sound to produce a tour-level driver. Now, the new Mizuno ST 230 Drivers add explosive distance to the performance equation through CORTECH Chamber technology. Strategically located close to the face, the CORTECH Chamber encases a stainless steel weight with elastomeric TPU, resulting in decreased spin and an additional energy source that increases ball speed. At the same time, CORTECH reduces stress on the face, granting Mizuno's engineers the ability to construct the face out of a more resilient material. Utilizing Forged SAT 2041 Beta Titanium instead of the more commonly used 6-4 Titanium allows for a thinner, faster face, with a complex multi-thickness design that preserves ball speed on mis-hits. With its rounded, deeper profile, and weight located closer to the heel, the ST-X 230 generates slightly higher spin rates and a slice-fighting draw bias. According to Mizuno, natural drawers of the ball may find more ball speed from the ST-X. 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.