Cleveland RTX Zipcore Black Satin Wedge The RTX ZipCore wedge is both radically new and ultra-familiar. Its new core has unlocked design freedoms pushing the performance beyond any wedge in Cleveland Golf's history. Yet, the RTX ZipCore maintains that sleek yet traditional design that is familiar and inspires confidence at address. This is the RTX ZipCore from Cleveland Golf. Revolutions need revolutionary technology, so we tore our flagship RTX wedge down to its core and rebuilt it from the inside out. This is the RTX ZipCore wedge. Featuring our new ZipCore technology, UltiZip Grooves, and a new heat treatment process, the RTX ZipCore delivers enhanced control, more spin, and unmatched durability to last you round after round. ZIPCORE ZipCore is a unique, low-density core that sits at the heart of RTX. ZipCore shifts the center of gravity while raising MOI, adding spin, enhancing control, and boosting consistency on all your shots. ULTIZIP GROOVES These new grooves are sharper, deeper, and narrower. They bite harder, channel more debris, and they're closer together for more groove contact on every shot. NEW HEAT TREATMENT A measured, timed blast of heat does wonders for a wedge's durability. Ultimately, this new heat treatment process ensures that you'll love your RTX ZipCore round after round.