These are Officially Licensed Dr. Seuss Grinch Pajama Pants. Dr. Seuss wrote 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 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.