Show off your intellectual side with this eye-catching black t-shirt featuring a unique brain-skull design. The striking white graphic showcases a skull topped with a brain, accompanied by the thought-provoking statement, 'If you can't explain it simply, you don't understand it well enough'. Made from comfortable material, this short-sleeve tee is perfect for casual wear. Makes a statement whether at school, work, or a casual gathering. A great gift for teachers, students, or anyone who appreciates a clever design with a philosophical message.