Callaway big bertha v series driverour fastest bertha yet distance from aggressive speed andforgiveness in a lightweight designspeed optimized technologya lighter club starting at 290 grams helps create moreclubhead speed and the kind of ball speed that makes the ball go along wayfaster swing speeds also come from the aerodynamic shaping thatlowers drag through the entire swing and forged composite materialin the crown is lighter leading to maximum clubhead speedtheyrsquore all crucial