Mizuno MP-59 Irons stock steel shafts are Dynamic Gold S300
The Mizuno MP-59 irons are designed to have the feel of cavity irons with the compactness of blades. The less offset hosel delivers more control to the accomplished player while the trailing edge bevel allows for a greater variety of shot-making. The MP-59 is made from steel, 12 grams of titanium are forged into a pocket behind the face of each club. Mizuno says the titanium allows the clubs to maintain the ideal amount of thickness behind the impact area for solid feel while automatically redistributing the weight to the heel, toe and sole of the club.
The MP-59 takes the multi material concept further than its award wining predecessor (MP-58). With its Ti weight more central to the clubhead the MP-59 creates even greater stability from off center strikes. This increased stability allows for less offset to be used, improving the irons look at address.