Personalized Kindergarten Back to School Dinosaur Youth T-Shirt. Kindergarten dinosaur Youth T-Shirt - Vintage Hot Pink 1st day of school student or teacher apparel 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.