Math Birthday T-Shirt - "I am √169 Years Old"

This classic black t-shirt makes a playful statement with its unique math-themed design. The shirt features the phrase "I am" above a square root symbol containing the number 169, followed by the words "years old." This witty graphic is perfect for anyone who loves math puns or is celebrating their 13th birthday. The design is printed in white, offering a striking contrast against the black background. Made from a comfortable, breathable fabric, this tee is ideal for casual wear. It’s a fun and memorable way to mark a special occasion or show off your geeky side. Makes a great birthday gift!