Officially Licensed Dr. Seuss Grinch Pajama Pants. Dr. Seuss wrote The Grinch Who Stole Christmas, 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 feature an allover design of the Grinch in the Santa suit and Max as his reindeer. The Grinch is in many distinct poses, even a meditating one. Super soft touch fleece pants that are pink with an elastic waistband and a pull drawstring for comfortable wear.