Big Bertha REVA Hybrids are designed for women to unlock your inner distance. Weve added more offset to help reduce your slice or big miss. This increased offset helps to promote a straighter ball flight for more distance. Fast ball speed also comes from two internal Jailbreak bars that connect the sole and crown, so the face can take on more of the load at impact. Features a completely new RCH shaft, designed by Callaway to specifically enhance your swing speed. The Big Bertha REVA Hybrid is built for women who want to unlock their inner distance with a total forgiveness package.This is our easiest to launch womens hybrid, with a larger head volume thats designed to help you get rid of the big miss that spins off line. When you hit it straighter, you hit it longerits just that simple.