The Great Big Bertha Driver is back, and it represents the next frontier in driver design. This advanced adjustable driver has a light, fast, stable chassis unlike any other driver we have had before. It’s a technological breakthrough, and it’s built to get the most distance for ALL golfers. So how did Callaway make this breakthrough? They optimized the multi-material chassis to generate more clubhead speed through aerodynamics and a wide range of weight classes to suit every swing type. Callaway also developed next gen R*MOTO technology that provides the structure for a thinner face which leads to high ball speeds on center and off-center hits. And they added Adjustable Perimeter Weighting on the perimeter of the head for ball flight and dispersion control with exceptional forgiveness.