Features of the Cleveland RTX6 ZipCore Golf Wedge Black Satin: HYDRAZIP How'd we pack so much spin into RTX 6 ZipCore Wedges? HydraZip. That's how. HydraZip technology features a dynamic blast and laser-milled line system designed to maximize spin in wet or dry conditions, and from anywhere around the green. MAX SPIN. ANY CONDITION. The striking areas of RTX 6 ZipCore Wedges include dynamic blast media and laser patterns specific to loft groupings 46°–48°, 50°–52°, and 54°–60°. Lower lofts receive a less rough blast, while higher lofts receive a rougher blast and more laser lines for more consistent dry and wet spin performance across the course. ZIPCORE Our proprietary, low-density core technology sets the Center of Gravity...