Avengers Backpack with Lunch Box for Boys Set - Bundle with 16” Avengers Backpack, Avengers Lunch Box, Water Bottle, Bookmark, More | Avengers Backpack for Kids. This Avengers backpack set includes a 16” backpack with adjustable straps, zip closure compartment, and top loop featuring colorful artwork of your favorite Avengers superheroes including Captain America, Iron Man, and more. This Avengers backpack for kids set also includes an Avengers lunch box, great for keeping your food at the perfect temperature all day long. Show off your love of the Avengers in style. This Avengers backpack bundle also includes a Thor bookmark and a Beach Kids superhero door hanger, making the perfect set for any Marvel or Avengers fan. Officially licensed Marvel Avengers backpack and lunch box set is perfect for kids of all ages, boys and girls alike. Set also includes a Beach Kids water bottle.