Description: A must have t-shirt for the special birthday boy! Wonderful bright colors screen printed on white cotton t-shirt. He'll feel so special when he can proclaim to the world that he is the Birthday Boy! Original design by Adorable Originals ~ The "I'm the Big Brother" and "I'm the Big Sister" Clothing Company. 50% Cotton 50% Polyester. Machine wash inside out. Tumble dry low. Size Chart: X-Small 2-3 Years Small 3-4 Years