The Mizuno ST190 combines every known factor to deliver ball speed and driving distance. Mizuno's ultra-fast Forged SP700 Ti face is enhanced with a lighter structure that consistently gives higher ball speeds. Combined with a large carbon composite crown and an amplified wave soleplate to convert each additional mph into yards gained. A factory fixed backweight adds additional MOI for stability from off center strikes. The ST190G includes two twin 7-gram weights on an easy to use track to make adjusting spin, fade or draw a very simple process.