"The National Lampoon's Vacation" is a series of films that follow the hilarious Griswold family! "The Christmas Vacation" was no different! There are so many classic scenes and items from the film like the glass Moose Mug, Clark bringing home a Christmas tree that just happens to have a voracious Squirrel in it, and so much more! The pajama set-top features The Griswold family car with the legendary tree tied to the top, along with the movie's title logo. The pants feature an all-over print of the same design! The whole set is made of a comfy and soft 100% polyester fabric blend, for the holidays! These are the best!