Show off your mathematical prowess with this eye-catching graphic tee! This black t-shirt features a bold, white print of the formula for the sum of a geometric series. The classic crew neck and short sleeves offer a comfortable, casual fit. Made from what appears to be soft, breathable cotton or a cotton blend, this tee is perfect for everyday wear, math classes, or nerdy gatherings. Makes a great gift for students, teachers, engineers, or anyone who appreciates a touch of mathematical humor and style. Grab yours now and let your intellect shine!