Mizuno ST-MAX 230 Driver Shaft:Mitsubishi Kai'Li Blue 50 Mesh and synthetic upper

Mesh and synthetic upper

Like Rugby

Two Internal compression straps to reduce movement in transit

Velocity Boosting Additive In Core For Increased Distance - The core of DUO SOFT is specially formulated for maximum energy return

Flat-front

Mizuno ST-MAX 230 Driver Shaft:Mitsubishi Kai'Li Blue 50 Mesh and synthetic upperMAX MOI. MAX STABILITY. A low profile, wide footprint driver that looks noticeably larger than its measured 460cc. An expanded CORTECH Chamber and 54 grams of back weighting combine to create Mizunos most stable ever driver, with exceptional straight line performance across its wide, inviting clubface. The ST MAX 230 driver unveils two new engineering enhancements to ensure that stability is backed with impressive ball speeds a next generation CORTECH