Demarini Vendetta C6 Fastpitch Softball Bat (-12) Bob, weaveand explode: C6 Composite. This fully carbon composite has a visibly wider weave pattern, giving it more flex than other designs. This creates a trampoline effect when the ball makes contact with the bat-absolutely jumping off the barrel. All aboard the crazy train: Internal Rails Hybrid Handle. Made up of two unique components. The inner rails maintain stiffness and provide stability to the much softer outer all, which reduces vibration for an easy swing. As if it needed an exclamation point: Clutch End Cap. Developed for exclusive use with DeMarini composite barrels, the Clutch End-Cap returns impact energy straight to the barrel