Personalized Blue Wavy Baseball Coach Youth T-Shirt. Baseball coach in wavy text with 3 baseballs showing through is a unique sports gift design for coaches at birthdays, holidays and special occasions. 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.