If you're a fan of Nickelodeon cartoons, you're going to love this Last Airbender merch! In a war-torn world of elemental magic, a young boy named Aang reawakens to undertake a dangerous mystic quest to fulfill his destiny as the Avatar and bring peace to the world. These Avatar The Last Airbender shorts feature the loyal sky-bison known as Appa with the words "Yip Yip." The pajama shorts themselves are made of a soft 60% cotton and 40% polyester fabric blend, for casual wear and lounging about!