Cleveland completely overhauled their flagship RTX wedge line to bring the new RTX ZipCore construction. ZipCore features a unique, low-density core in the heart of the club. The new design, with a more centered Sweet Spot and High-Low MOI, creates more consistency in the spin, distance, and feel of every shot. UltiZip grooves are sharper and deeper to slice through grass and debris at contact, minimizing its effect.