Big Bertha Fusion pairs an aerospace-grade titanium Exo-Cage with our ultra-light triaxial carbon crown and sole. The fusion of these materials allowed Callaway engineers to position substantially more weight in the perimeter and far back from the face compared to our previous drivers, resulting in a dramatically higher level of forgiveness.
Big Bertha Fusion’s triaxial carbon Exo-Cage gives us the freedom to break previous tradeoffs regarding head shape, giving us the ability to create an appealing new shape that combines fast aerodynamics with high MOI. The new shape also gave us new options in acoustic engineering, allowing us greater ability to evoke an especially satisfying sound and feel.
The streamlined head shape, aided by our proprietary Speed Step that we created with the help of aerospace experts, is designed to move faster through the air.