Callaway Big Bertha B21 Hybrid INTRODUCING BIG BERTHA B21 HYBRIDS DISTANCE ANY WAY YOU SWING IT Big Bertha B21 Hybrids are built for players who want to unlock their inner distance with a total forgiveness package. This is our easiest to launch hybrid with a larger head volume, and it’s designed to help you get rid of the big miss that spins off line. FEATURES & BENEFITS FAST BALL SPEEDS FROM FLASH FACE SS21 Fast ball speeds across an expansive area in each model and loft, with our advanced A.I.-designed Flash Face. So you’ll hit it long, even if you miss the center of the face at impact. STRAIGHTER, LONGER BALL FLIGHT FROM INCREASED OFFSET We’ve added more offset to help reduce your slice or big miss. This increased offset helps to promote a straighter ball flight for more distance. ENHANCED LAUNCH AND TRAJECTORY CONTROL FROM DUAL MIM’ED TUNGSTEN WEIGHTING Optimized CG for launch and stability from precisely shaped dual MIM’ed tungsten weight. INCREASED BALL SPEED AND EASY LAUNCH Two internal Jailbreak bars connect the sole and crown, so the face can take on more of the load at impact. For higher MOI in a forgiving shape, we've used a significantly lighter carbon crown so we can redistribute weight.