These are Officially Licensed Dr. Seuss Grinch Pajama Pants. Dr. Seuss wrote The Grinch Who Stole Christmas, which is an all-time great holiday Christmas story that men, women, boys, and girls all know and love! These Dr. Seuss Grinch Fleece Plush Pajama Pants features an allover design of the Grinch with a Santa hat and the saying "Naughty." It is a super soft fleece fabric with a Minky touch feel. Made of 100% polyester.