Mickey Mouse Backpack for Boys 4-6 Set - Bundle with 16” Mickey Mouse Backpack for Boys, Water Bottle, Stickers, More | Disney Mickey Mouse School Backpack for Boys. This Mickey Mouse backpack for boys 4-6 set includes a 16” Mickey Mouse backpack depicting colorful artwork of Mickey Mouse with padded adjustable shoulder straps, front pocket, and top loop for hanging. Made of durable material, this Mickey Mouse school backpack is sure to last and will carry everything you need with you no matter where you go. Sure to be a hit with Mickey Mouse fans of all ages, this Mickey Mouse school backpack for boys can double as a travel bag, storage container, and more! This Mickey Mouse kids backpack pairs perfectly with all other Mickey Mouse merchandise. Officially licensed Mickey Mouse backpack for boys custom product bundle also includes a foldable water bottle, Mickey stickers, and a castle door hanger.