Used BARELY Mizuno B19 Hot Metal 30 20 340497 USA Little League Bat Navy Red Dusty Olive Compression performance undershirt with an Wmn 38:Black Blue Compression performance undershirt with an Ensolite foam pad Designed by a physician Pads are removeable Naturexx treated fabric 50% Polyester 50% PBT Hand Wash Only Engineered from our exclusive which leads to more pop and distance without sacrificing durability Cortech design: wall thickness is adjusted across the barrel to create a massive sweet spot 1 piece design: less flex higher performance Optimized end cap: actually widens sweet spot & creates booming sound USA Baseball approved