" 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. Designed with a front 1/4 zip construction and 1/4 zip side expansion opening to make this the ultimate hitting jacket. FIT & DESIGN: 4-Way Stretch Woven Material: Greater freedom of motion and durability 1/4 Zip Side expansion zipper for easy On/Off Wind resistant Raised Mizuno logo ADDITIONAL DETAILS: "