Mizuno ST-X Golf Driver Tour Ready. World Ready. The ST-X Golf Driver launches high, and at a draw bias, while Mizuno’s BETA rich Ti face to enhance play for golfers with a mid to low swing speed. The extremely lightweight design of the ST200X Golf Driver encourages a higher ball flight, and by utilising MFUSION 39g Mizuno shafts, the draw bias reaches its highest potential. Noticeably, the ST-X head has a unique shape and offers additional heel weights with an upright lie angle which both encourage enhanced distances. Faster ball speeds are accessed via the multi-thickness Beta Rich Forged Titanium Face responds to maintain performance for longer. Predictable Performance Weight savings from a compacted Wave Sole and variable-thickness graphite crown used low and deep to combine low spin with stability from off-centre strikes. Pure At Impact A collection of structural refinements to achieve a more tour preferred solid sound at impact. Loft Adjustable By 4 Degrees with additional upright and flatter settings.