This is an officially licensed Batman pajama set Guaranteed! The 2 piece set features the Batman logo on the long sleeve top and matching gray pajama pants and blue trim scheme. Great for sleep play or costume this Batman pajama set is sure to please your young superhero in training! Our pajamas are regulated by the Consumer Product Safety Commission which requires cotton sleepwear to be tight fitting. So remember to buy a size up if worried the pajamas may fit small. For questions regarding sizing please refer to size chart in the images.