Celebrate your 21st birthday with a touch of mathematical humor! This black t-shirt features a white graphic that cleverly displays "√441 years old," indicating the wearer's age. The design is surrounded by various mathematical formulas, adding a nerdy yet stylish element. Made from a comfortable, breathable fabric, this shirt is perfect for casual wear, birthday parties, or as a fun gift for the math enthusiast in your life. Stand out from the crowd and show off your unique sense of humor with this eye-catching tee! This shirt is sure to spark conversations and bring a smile to everyone's face, making your special day even more memorable. Get yours today and make a statement that's both smart and stylish!
