Celebrate your 21st Halloween in style with this festive t-shirt. The design features the word "Boo" with a Halloween-themed pattern including ghosts and pumpkins. A witch's hat adorns the "o" in Boo. Below the word, the shirt states "I'm 21" with the same festive pattern. Wear this t-shirt to a Halloween party, bar crawl, or any other spooky event! Makes a great gift for someone turning 21 around Halloween.