Avengers Boys' Avengers T-Shirt 60% Cotton & 40% Polyester Boys Avengers T-Shirt. Become one of Earth's Mightiest Heroes with this super awesome shirt. Top features a print of all your favourite heroes including Iron Man, Captain America, Thor & The Incredible Hulk. This tee is a must have for any budding Avenger and can add a touch of action to any casual look. Officially licensed Marvel merchandise, exclusively designed for Character USA.