The Adorable Originals Boys Birthday T-shirt is a must have birthday 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 inI'm the Big Brotherin and inI'm the Big Sisterin Clothing Company. Available in X-Small (2-3 years) or Small (3-4 years). The Adorable Originals Boys Birthday T-shirt is made of 50% Cotton 50% Polyester. Machine wash inside out. Tumble dry low.