BRUCE BOLT Premium Yellow Arm Sleeve Sizes:Adult L/XL Medium Barrel - Maximum Pop

Medium Barrel - Maximum Pop as well as Optimal Balance

Stainless Steel matte black hardware

Interior guard material wicks moisture to improve feel

* Adjustable shoulder cap

REVlite midsole delivers incredibly lightweight cushioning

BRUCE BOLT Premium Yellow Arm Sleeve Sizes:Adult L/XL Medium Barrel - Maximum PopThrow Harder Recover Faster BRUCE BOLT Premium Yellow 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.