Well, it looks like Tony Stark enjoys the P90X exercise program. Not only does he enjoy a super intense workout, but he also likes to work the kinks out of his Iron Man armor while he's doing that. Tony Stark is not amused by the 'Banana Superman' core workout that's for sure. Anyways, the 100% cotton Iron Man Punch Over Logo Blue 30 Single T-Shirt is a blue soft shirt featuring some vintage artwork of Marvel's Shellhead doing some kind of jazzercise...or something to that tune. Maybe he's practicing knee-smashes on the Iron Man Punch Over Logo Blue 30 Single T-Shirt?