With the S9-1 F Driver, the faster the ballspeeds, the greater the rewards. Precision tuned for fast-ball-speed players, this driver utilizes our refined Hotter 9 Points technology to exploit and maximize COR. To further increase efficiency, the clubface shape has been adjusted toward a 1:1 length-to-width ratio, putting more energy directly behind the ball. This focused technology promotes more consistent ball flight and greater accuracy, while the incredibly lightweight clubhead and longer shaft help generate blazing-fast ball speeds.