Batman wears the 100% cotton Batman Symbol Black Jam Shorts when he's outside training for a mixed martial arts tournament. Sure you know he's going to win already even as 'just' Bruce Wayne, but he has to cut down on that water weight to make weigh in! He doesn't want to end up fighting that head Mutant from the Dark Knight Returns...they don't allow mud in MMA! You won't have to fight anything crazy but you can still get the fine Batman Symbol Black Jam Shorts! These 'sweat shorts' are soft and feature the classic black and yellow Batman symbol...these are the shorts that Gotham deserves!