Personalized Cooperstown Baseball Breakthrough Youth Long Sleeve T-Shirt. A baseball crashes through the background, leaving cracks as it smashes through. Cooperstown, home of the baseball hall of fame, written underneath in a sports font on a Youth Long Sleeve T-Shirt - White. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)