New 4335 Nickel Chromoly is 35% stronger than Mizuno’s original Chromoly, for an 8% thinner, high ball speed clubface. Mizuno’s new V-Chassis delivers a more solid satisfying vibration pattern, even though the clubface is 8% thinner. Seamless cup face construction delivers the deep center of gravity needed for a high launch and controllable landing angle. The thinnest part of the sole is extended 18% wider, creating a wider high-energy area.