Birthday design. This fun and nerdy outfit is the perfect idea for weird geeks for anyone celebrating turning 18 years old. It could also be a nice group design for an eighteen year old B-Day party. Automatic translation This graphic is a great geeky math joke for any nerd or a math, algebra, physics or science freak with cool sarcastic humor. Regardless of whether someone likes numbers or not, this is certainly a nice Lightweight, Classic fit, Double-needle sleeve and bottom hem