OVERVIEW: Cleveland''s popular ZipCore line returns with RTX 6 ZipCore, featuring new technology that enhances greenside spin from tough lies and conditions. The dynamic new HydraZip face blast is a laser-milled system that creates roughness to increase friction and maximize spin in any conditions. It also reduces glare at address with more matte finishing on the face. The proprietary ZipCore technology has been improved, with up to 95% more ZipCore material. This increases MOI by up to 20% by...