Demarini CF3 Adult Fastpitch Bat - 2009 Model Clutch End-Cap-Synchronized stiffness with composite barrel returns impact energy to barrel Variegated Comfort Grip-faded color with maximum comfort and tack. Approved for play in the following Associations: ASA, USSSA, NSA, ISA. 12 Month Limited Warranty Stacked Composite is the next generation of Doublewall. Optimizes multiple walls separated by the Demarini Flex Film for the biggest sweet spot and most power on off-center hits