Officially Licensed Sesame Street Elmo Pajama Pants. Sesame Street is one of the best-known children’s tv shows of all time and has encouraged generations of us to live, learn, and love with characters like Cookie Monster, Big Bird, Snuffleupagus, Grover, and Oscar The Grouch! This lounge pant features an allover Ugly Sweater design of Elmo, snowflakes, and Christmas trees. Super soft touch fleece pants that are green with an elastic waistband and a pull drawstring for comfortable wear.