DeMarini 2015 SF7 Slowpitch Bat X10 Double wall Alloy Barrel: Maximizes the sweet spot with the strongest and thinnest aluminum walls C6 Composite Handle: Wider composite weave maximized handle performance with optimum flex N2M End Cap: Turned to absorb vibration and maximizing power Thrasher Grip: Low profile grip with great tack so you can feel more of the bat in your hands Approved for play in the following Associations: ASA, USSSA, NSA, ISA, ISF and meets 1.20 BPF bat standard