Penned by Richard Danne and Bruce Blackburn, the NASA logotype — better known as the "worm" — was used from 1975 to 1992, making it a favorite for a huge group of kids-now-adults. Far more futuristic than the circular "Meatball" logo, it appears tastefully on the front of this cap. Made from 100% cotton, the green cap has the logo embroidered in black on the bottom left front, giving it a slightly military vibe, as well as "Remove Before Flight" taping on the inside and adjustable snap closure at the back.