Callaway Golf GBB Epic Driver

GBB Epic is so-named because it represents an epic shift in how the head and face behave to enhance power, spearheaded by our innovative Jailbreak Technology and Exo-Cage/triaxial carbon construction. Any golfer, from scratch players to high handicappers, should find more speed, distance and control with GBB Epic.

Callaway's patent-pending Jailbreak Technology profoundly changes how the head behaves to increase ball speed and distance. At impact, a driver’s crown, sole and face each bend, flex and rebound. Jailbreak positions two ultra-light (3g), ultra-strong titanium bars behind the face, connected to the crown and sole. Jailbreak bars reduce crown and sole deflection, allowing the face to take on more impact-load to focus more energy – physicists call this “energy lensing” -- across more of the face to promote longer average distance from swing to swing.

Epic’s clubhead consists of their new aerospace-grade titanium Exo-Cage outfitted with crown and sole panels made of triaxial carbon, an extraordinarily light and strong composite material developed by Callaway. Nearly half of the head’s surface – 46% -- consists of triaxial carbon, with the crown weighing just 9.7g and the sole just 5.8g. That’s the lightest crown ever in a Callaway driver. Epic’s incredibly light and strong multi-material construction allows extremely high MOI and a low CG that makes it easy to launch the ball on a strong, low-spinning flight.