The Callaway Great Big Bertha Epic fairways are exceptionally easy to launch and provide the player with great distance. Incorporating Callaway�s triaxial carbon composite material, the Epic fairway�s crown comes in at 5.8g, 78% lighter than a standard steel crown. They�ve redistributed the weight in strategic locations to lower the CG and increase MOI for a forgiving and powerful launch. The Epic also includes Hyper Speed Face Cup technology, a thin and flexible rim around the inner side of the face which flexes and releases more uniformly and efficiently at impact for higher ball speeds. Callaway�s Speed Step technology which enhances the head aerodynamics results in faster club head speeds.