HIGHER HEAD SPEED
The irons employ the same MP700 carbon shaft as the driver,providing higher head speed, even with a heavier club head.
The lineup also offers a new steel shaft for a solid swingfeel. Jointly developed with Nippon Shaft Co., Ltd., the NS Pro 920GHfor XXIO is a steel shaft featuring a counterbalanced center of gravity(CG) design perfectly matched to the XXIO8.HIGHER BALL SPEED
Sweet spot expanded to match golfer's hitting point
The new face thickness design is individually customed foreach loft to match the golfer's hitting point, expanding the sweet area(108% compared to previous model) laterally in the middle irons andvertically in the wedge to create higher ball speed.Higher club head kinetic energy
Club head weight has been increased by 2 g than the previousmodel to impart more kinetic energy to the ball at impact, resulting inhigher ball speed.