A must have for any serious player, the Mizuno Youth Short Sleeve Hitting Jacket is made with a premium, comfortable and ultra lightweight stretch woven fabric that is also wind resistant. 4-Way Stretch Woven Material: Greater freedom of motion and durability. 1/4 zip Wind resistant Side Expansion Zipper For Easy On/Off Raised Mizuno logo IMPERMALITEA(R) : Superior water protection. A lightweight, breathable, microweave shell provides unsurpassed performance and comfort.