Mizuno — historically known for its iron designs — had a breakout year on the PGA Tour in 2019 with its ST190 drivers. Keith Mitchell captured his first-ever PGA Tour win with an ST190 driver in the ...
1. A lighter, faster, stronger face. The new ST-G driver makes use of a new heat-treated Ti 412 alloy that is lighter density than the company’s SAT 2041 used in its recent ST-X 230 and ST-Z 230 ...