The Adorable Originals 1st Birthday T-shirt - Boy is a precious birthday t-shirt for the First Birthday boy! He can wear his on the special day and then you can pack it away as a keepsake to show him when he's older. A must have for the First Birthday boy! Original design by Adorable Originals ~ The inI'm the Big Brotherin and inI'm the Big Sisterin Clothing Company. Shirt is one size XXS (1 year). The Adorable Originals 1st Birthday T-shirt - Boy is made of 50% Cotton 50% Polyester. Machine wash inside out. Tumble dry low.