These are Dr. Suess socks! Dr. Suess is the author of the extremely popular children's books that inspired wonder and magic and millions of readers' minds! This Dr. Seuss sock set features 2 pairs with each set having its own design from one of the magical books in the collection, CAT IN THE HAT. Made of soft 98% Polyester, and 2% Spandex. These are sock size 7-9 which fits children's shoe size 10-4 best.These are the best!