Marvel Avengers Backpack (16" Backpack Featuring Iron Man, Captain America, Thor, Hulk) Be ready for any adventure with this Marvel Avengers backpack featuring Iron Man, Captain America, Thor and Hulk! This Marvel Avengers backpack for boys features licensed artwork from the movies. Zip closure. Adjustable shoulder straps. Top loop for hanging. Marvel Avengers backpack measures 16 inches by 12 inches by 4 inches. Just the right size for back to school children. Officially licensed Marvel Avengers product featuring Iron Man, Captain America, Thor and Hulk!