Callaway Big Bertha B21 Golf Driver Unlock your Inner Distance with the Callaway Big Bertha B21 Golf Driver. By using an ultra-low forward CG, this Golf Club achieves low spin and high launch, and this is the first time Callaway has created a golf club like this. Are you looking for fast ball speeds and increased forgiveness on your shots? Then Callaway’s Big Bertha B21 Driver is perfect for you! Callaway has advanced their A.I. designed Flash face to promote fast ball speeds across a much more expansive area, ensuring your ball goes the distance, even on a mishit. Featured within the Big Bertha B21 Golf Driver are two internal jailbreak bars that connect the sole and crown. This ultimately allows for faster ball speeds, while a lighter carbon crown re-distributes weight to achieve a higher MOI. With many more features listed below, the Callaway Big Bertha B21 Golf Drier is one of the best Golf Drivers available if you are looking to take your game to the next level! Features & Benefits Unlock Your Inner Distance If you want to hit the ball farther, you have to hit it straighter. And to help eliminate your slice or big miss, we’ve created our first high launch driver with an ultra-low forward CG for a low spin. It’s a new formula for distance to give you a more consistent ball flight, and more tee shots that find the fairway. Fast Ball Speeds From Our A.I. Designed Flash Face SS21 We’ve advanced our A.I. designed Flash Face to promote fast ball speeds across a more expansive area. So you’ll still hit it a long way, even when you miss the center of the face. Easy To Hit From Bertha Shaping And Added Draw Bias Built to improve your launch angles, and stop your slice. The large Big Bertha head is specifically engineered with internal draw bias weighting for a straighter, longer ball flight. Super Strength Materials For High, Consistent Ball Speeds Promotes optimal speed, forgiveness and spin characteristics from a face architecture that’s extremely strong and lighter than traditional titanium. Jailbreak + T2C Triaxial Carbon Crown For Ball Speed and Unconventional Forgiveness Two internal Jailbreak bars connect the sole and crown to promote fast ball speed, and the significantly lighter carbon crown allows us to redistribute weight for higher MOI.