These are Officially Licensed Donkey Kong Pajama Pants. Donkey Kong started in a game of his name where he would roll barrels trying to beat the jump man who later became Mario. These soft-touch cotton sleep pants feature Donkey Kong with an excellent all-over game board barrel toss design. Each lounge pant is made of ultra-soft cotton fabric that will have you wanting to wear them and snuggle up to a good movie or book every day! They feature a drawstring closure of super sturdy material that won't run, two hip pockets, and a 1-button fly.