New Mizuno 340451 Silhouette -13 Fastpitch Softball Bat White/Blue/Black

Zone: creates a massive sweet spot by adjusting composite angles in 10 specific zones across the barrel
Double wall: gives you higher peak performance right out of the wrapper with a larger sweet spot for more power and forgiveness
2-piece link: significantly reduces vibrations to the hands to give you the amazing feel of solid contact every at-bat
Cylinder seaming: allows for consistent performance and durability across the barrel
ASA, USSSA, NSA, ISA, ISF approved