BRUCE BOLT Premium Black Arm Sleeve Sizes:XX-Large and a breathable 3D mesh

and a breathable 3D mesh padding liner

* Designed in California

which results in an even harder baseball bat

CLEANING: Machine wash liner

BRUCE BOLT Premium Black Arm Sleeve Sizes:XX-Large and a breathable 3D meshThrow Harder Recover Faster BRUCE BOLT Premium Black graduated compression arm sleeves are designed to increase blood flow. They also decrease muscle vibration during the throwing motion to keep your arm feeling live throughout the game. THROW HARDER, LONGER: Graduated compression sleeves increase blood flow to the arm. They accomplish this by dilating the players arteries by 40% and by compressing the veins. Increased blood flow means more oxygen. As