98% CHIMP Shirt. Vintage letter word graphic design. Great shirt for scientist science teacher science student or anyone. Monkey ape chimpanzee lovers will enjoy this tee for Birthday gift Funny Friend gift or anytime. Evolution theme gift idea. Funny Evolution Theory T Shirt. Whether you believe in evolution or think it's a theory this shirt has a funny saying that will make people smile. Perfect for Mom Dad Sister Brother Friend all ages. Lightweight, Classic fit, Double-needle sleeve and bottom hem