Sprints - Persistence Hat UNISEXDinosaurs dominated the planet for approximately 165 million years from the Late Triassic period to the Late Triassic period. Despite their eventual extinction, their persistence through geological eras, climates & environments is enviable. And none more enviable than the ferocious t rex arms who despite less inclined appendages, became the King of all persistent saurs. Represent the most persistent on this Sprints OG solid light blue beauty.