Our most technologically advanced driver utilizes an ultra-lightweight chassis and easy-to-swing design to increase clubhead speed and overall distance.Now paired with premium ultra-lightweight components to help generate even more power in your swing.

• Legendary Great Big Bertha Distance from an Innovative, Lightweight Design
  This easy-to-swing driver is engineered with an ultra-lightweight design for unmatched distance characteristics. Its nearly 30g lighter than a tour driver, and its an ideal option for golfers who want to increase their swing speed.

To read more click here:Great Big Bertha Driver