Stark - or Iron Man, as you may know him, - is all about inventing for the future, and the future of your comfort incudes these Mens Stark Expo Sleep Pants! The Marvel Iron Man Mens Sleep Pants are a pair of all black Sleep Pants made of a cotton and polyester blend that is super comfortable and durable. The Stark Expo Mens Apparel features a bright, bold, soft hand print graphic on the upper left leg that reads "Stark Expo - Changing the World for a Better Future." The Mens Marvel Iron Man Sleep Pants are available in mens sizes XS - 3XL and are the perfect Stark Expo Sleep Pants for fans of Iron man and The Avengers!