This black t-shirt features a humorous and geeky design. The graphic displays the mathematical symbol Pi above the words 'KEEP CALM IT'S'. The shirt is made of a comfortable, likely cotton blend fabric, and has a classic crew neck and short sleeve style. This tee would be ideal for casual wear, math enthusiasts, teachers, students, or anyone with a love for science and humor. Wear it to school, social gatherings, or just lounging around. Show off your witty side with this eye-catching graphic tee!