RTX 6 ZipCore New HydraZip dynamic blast and laser-milled line system creates roughness to enhance friction-maximizing spin in any conditions and from anywhere around the green Visually, RTX 6 ZipCore Wedge faces are more matte than last generation, reducing glare at address and standing out more from the hosel and toe par Cleveland's proprietary, low-density ZipCore technology has exponentially evolved for RTX 6 ZipCore, with up to 95% more ZipCore material By setting the CG right where you strike the ball, plus increasing MOI by up to 20%, this generation offers players increased spin, distance, consistency, feel, and control on every shot UltiZip features grooves that are sharper, deeper, and more tightly spaced, that slice through debris and bite harder for enhanced spin and control; channel more debris for better shot consistency; and are set closer together (compared to past Tour Zip Groove designs) enabling Cleveland to fit two more on the face for greater edge contact and absolute spin performance