The 100% cotton Batman Superman BAM! T-Shirt is a fantastic retro shirt featuring, now this will catch you off guard, both Batman and Superman. Yeah, that came out of no-where, didn't it? The Batman Superman BAM! T-Shirt respects a simpler time; one where the greatest threat to the Man of Steel or the Caped Crusader were disco balls or unwashed hippies. The Batman Superman BAM! T-Shirt has both of our favorite heroes engaged in what appears to be jazzercise and below the sound effect BAM! That must be some serious jazzercising.