Made from 100% Cotton, this black t-shirt features an image of the arc reactor, the brilliantly conceived power source worn by inventor Tony Stark to both maintain the functioning of his heart, and power the Iron Man armor! And, it glows in the dark!  The arc reactor resides within Tony Stark's chest, attached to his heart and very useful in hindering the flow of deadly, coronary disabling debris!  Within the arc reactor lies the power to light a freakin' city, so you damn well know Iron man could punt a truck at you from Australia!  This black t-shirt is for you, Iron Man fan, and for you, self-contained fusion reactor!