Dc Comics (Superman, Batman, Flash) Mens Sleepwear / Pajama Pants Extremely high quality fabric: 100% cotton; Machine washable. Very high quality mens sleepwear - satisfaction guaranteed! Dc Comics (Superman, Batman, Flash, Green Lantern) logos printed allover for a classic look; Two hand pockets for storage; Fabric covered elastic waistband with drawstrings for added comfort; Functional button fly for convenience.