Cleveland RTX ZipCore 58

The RTX ZipCore brought Cleveland's ZipCore technology to the dedicated tour-wedge format in 2021. The ZipCore is a low-density polymer filling in the hosel area that shifts the CG lower and raises the MOI versus a standard steel construction, which Cleveland's testing showed improved spin consistency on partial shots. The 58/10 C-grind configuration is the most versatile in the ZipCore lineup: 10 degrees of bounce handles most conditions and the C-shaped sole with heel, toe, and trailing edge relief allows face manipulation without penalty. For a used buyer who wants modern spin technology at a price below current catalog, the ZipCore generation holds up well, and the groove sharpness on a used example is the primary variable to inspect before buying.