Celebrate a milestone birthday with this humorous and stylish black t-shirt. The design features a white, distressed-look graphic of a square root symbol over the number 225, followed by the text "YEARS OLD." This playful mathematical pun is perfect for anyone turning 15 or a math enthusiast with a great sense of humor. Made from what appears to be a comfortable and breathable cotton blend, this tee is ideal for casual wear, birthday parties, or as a unique gift. Show off your age with a clever twist and make a statement with this eye-catching birthday shirt!