It has ISF

Plastic frame Polycarbonate lens Non-Polarized UV Protection Coating coating Bridge: 1 millimeters Arm: 1 millimeters ArmourSight lenses are engineered for superior optical clarity and impact resistance

Some additional information: This bat does not have the new usssa stamp on it -13 Length to Weight Ratio 2 1/4 Inch Barrel Diameter 29/32 Inch Ultra Thin Handle Pro-Tack Grip Single System Technology (SST)

optimizing the release of body heat

Does not have Tags

New Other 2019 Mizuno B19-Power Carbon USA Baseball 2 5/8 Youth Bat Black/Silver 29/19 Size:29/19 It has ISFThe 2019 Mizuno B19 PWR Carbon USA Youth Bat features an extended barrel shape with cylinder seaming to seamlessly follow through in the zone. This streamlined one piece bat is constructed with Black Onyx Carbon, boasting maximum durability and a shorter break in period, and is outfitted with a Speed Helix Grip for optimal comfort during various game day conditions. This bat has a balanced Swing weight which is perfect for your all around contact