Marvel Avengers Backpack Set with Insulated Lunch Box, 16" Large (Avengers School Supplies) Marvel Avengers Backpack with Insulated Lunch Bag (Avengers School Supplies Set). Deluxe 16 inch large Marvel Avengers backpack with padded shoulder straps, zip compartments and top loop for hanging. Insulated Marvel Avengers lunch box measures 7"x9" and has a handle for an easy carry. Officially licensed Marvel Avengers school supplies product. Featuring Thor, Iron Man, Hulk and Captain America. The perfect back to school Marvel Avengers backpack for kids -- boys and girls alike. Sure to be a hit with any Marvel Avengers Infinity War fan.