This playful vintage natural history design features a chunky Tyrannosaurus rex with the humorous phrase “STUMMY HURT,” rendered in a classic blue engraved-style illustration. Inspired by the Late Cretaceous Period, the retro artwork combines paleontological character with nostalgic science-shirt aesthetics for dinosaur fans who enjoy a lighthearted twist. Made from 100% ring-spun cotton (high-quality cotton) with a soft, sensory-friendly feel. Every shirt purchased plants a tree, and the material is eco-friendly.