Four key technologies work in conjunction to make GBB Epic Sub Zero fairway woods fast, extremely forgiving and low-spinning to promote a remarkable combination of distance and control.

No. 1 is Callaway’s proprietary triaxial carbon that makes it 78% lighter than a steel crown.* The saved weight is repositioned in tactical places within the head to increase MOI for more stability on mis-hits. Triaxial carbon also lowers the Center of Gravity (CG), making this the lowest CG of any Callaway fairway wood.

The second key technology is the latest generation of our proven Hyper Speed Face Cup technology, which increases the area of the face that delivers fast ball speed. Now, the thin and flexible rim around the inner side of the face flexes and releases more uniformly and efficiently at impact to further increase ball speed across the face.

The third key technology is our innovative Speed Step, developed through a cooperative effort between Callaway R&D and aerospace engineers. Located on the crown, the precise size, shape and position of the Speed Step improves the head’s aerodynamics to promote more speed and distance without swinging harder.

The fourth key technology is our adjustable weighting, which employs two interchangeable weights in the sole, toward the front and back, to adjust the launch and spin rate 250 rpm, helping more players get into the range that promotes maximum distance**. Install the heavier weight (22g) up front and the lighter weight (3g) in back for low-spin, lower launch conditions for a lower, flatter trajectory. Putting the heavy weight in back delivers mid-level spin, a higher launch angle and raises MOI for easier launch.

• Increased power and forgiveness from incredibly light and strong Triaxial Carbon Crown
• High ball speeds from Next-Gen Hyper Speed Face Cup
• Faster head speed from Speed Step Technology
• Spin and trajectory control from adjustable weighting
• Aldila Rogue MAX shaft incorporates advanced materials and a unique carbon fiber multi-axial weave to promote an exceptional combination of consistency and stability