Officially Licensed Merchandise for Zack Zaetta at University of Massachusetts. Your order will be printed & made to order in 3-7 business days once you have placed your order! Your new go-to youth t-shirt. This staple t-shirt is soft and lightweight, with the right amount of stretch. It's comfortable and flattering for all. 50% airlume combed and ringspun cotton and 50% polyester Heather Sport color is 60% combed and ring-spun cotton, 40% polyester Size Up, Fits Slightly Slim Size Chart: University Of Massachusetts, Massachusetts, Ncaa, Print Making, Spun Cotton, Size Chart, University, Baseball, Ring