Embrace the holiday spirit with these men's black National Lampoon's Christmas Vacation sleep pajama pants. Featuring a Christmas tree strapped to a car above the iconic movie logo, green and yellow letters beneath spell out, "Griswold Family Christmas." Made from 60% cotton and 40% polyester, these pants offer comfort and ease while you lounge or sleep. They come with a drawstring adjustable elastic waistband for a customized fit.