Mizuno 351170 Youth RB Speed Compression Baseball Brief - GrayMizono Youth RB Speed Compression Baseball Brief Step up your game with Mizunos new Mens RB Speed Baseball Compression Shorts, designed for maximum mobility, comfort, and support. Made with a flexible polyester spandex blend, these compression shorts move with you, providing a streamlined fit that doesnt compromise on durability. The soft touch waistband ensures all day comfort, while an external cup pocket adds an extra layer of convenience and