Monster Jam is the ultimate pit stop for watching these greatly engineered vehicles roar in your local stadium, performing near-impossible feats at breakneck speeds. At Monster Jam, legends have been made over the years as these trucks compete in races and other freestyles to find out who truly is the best. This pajama-top features the Monster Jam truck known as "Grave Digger" with the Monster Jam logo and surrounded by green flames. The shorts feature an all-over print of Grave Digger and the Monster Jam logo. The pajama shorts contain an elastic waistband that fits every fan, and the whole pajama set is 100% polyester.