Personalized Baseball Team Player 12 Sports Youth T-Shirt. Baseball sports ball Youth T-Shirt - White has player number 12 logo, a great gift for a ball player who wears jersey number 12 or for their Mom or Dad to show support during a game. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.