GREAT BIG BERTHA FAIRWAY WOOD Lightweight Power from a Titanium Face & Body - Usually reserved for drivers, titanium provides Great Big Bertha with a significant weight and strength advantage compared to a traditional steel fairway wood. By leveraging a titanium face and body, 53% of the total head weight is made up of discretionary weight. This weight saving enabled Callaway to create a larger, more forgiving footprint and an ultra-low CG that steel does not allow. Fast Ball Speed from A.I.-Designed Titanium Face Cup & Jailbreak with Batwing Technology - The titanium face is uniquely optimized for each fairway wood head through A.I. for enhanced ball speed and spin consistency in a powerful design. Callaway’s Jailbreak with Batwing Technology pushes stiffness to the perimeter, while still allowing the face to flex for high ball speeds across the face. More Forgiveness from Multi-Material Construction - Great Big Bertha creates exceptionally high forgiveness. It starts with a lighter, stronger triaxial carbon crown that saves a significant amount of weight. The Forged Carbon sole also aids in weight savings and relocates the CG to create a slight draw bias. With all this discretionary weight, Callaway engineers leveraged 50g of internal tungsten and a 15g steel plate on the sole to create an easier, higher launch.