These are the Officially licensed product, guaranteed! This ankle sock set features 5 pairs of socks. One pair has the NASA logo (Meatball), 1 has a spaceship, 1 has an astronaut, 2 pairs have the NASA title with stars. Made of soft 98% Polyester, 2% Spandex. These are sock size 9-11 which fits men's shoe size 5-9 best, and women's shoe size 5-10 best. Show your adventure for space with these cool socks.