Mizuno ST-X 230 Driver — 10.5° Regular Flex Left Hand

The Mizuno ST-X 230 Driver is the draw-biased model in Mizuno’s ST 230 lineup, purpose-built for golfers who need help eliminating a slice without sacrificing distance. This left-hand version brings the same technology lefty golfers have been missing from Mizuno’s recent driver releases.

At the heart of the ST-X 230 is a Forged SAT2041 Beta-Titanium face — a high-strength alloy that resists micro-fractures and maintains its speed-producing characteristics shot after shot far longer than typical 6-4 titanium faces. The X-Axis design combines an expanded carbon composite window in the toe with heel-biased sole weighting to produce a reliable, repeatable draw bias that helps golfers hit more fairways.

Mizuno’s CORTECH Chamber technology encases a dense stainless steel weight in elastomeric TPU near the face, pulling stress away from the clubface while lowering spin rates for a more solid, penetrating ball flight. The Quick Switch adapter provides 4 degrees of loft adjustability, letting golfers fine-tune trajectory to match their swing. At 10.5° of loft with a regular flex shaft, this build is tuned for moderate swing speeds looking for a higher, more forgiving launch.