i-FORGED Condensed Forging stretching from the high-toe area and along the topline of the Iron blade enhances overall strength, durability, and feel. Then the forged faces on ZXiU are softened to improve this already exceptional feel. Added tungsten weighting perfects CG placement for ideal performance. MAINFRAME MainFrame saves additional weight and adds more MOI through an enhanced network of milled channels on the back side of the Iron face. At impact, this system amplifies ball speed and adds forgiveness. TOUR V.T. SOLE For the first time ever, we’ve included Tour V.T. Sole on all ZXiU Utility Irons. This proprietary combination of sole widths, bounce angles, and notches encourages a smooth glide through the turf without losing speed. UTILITY IRON SHAPE Our widest soles, combined with minimal offset and an appealing look at address, makes our forgiving, hollow ZXiU Utility long Irons professional favorites.