Nightmare Before Christmas Backpack for Kids Set - Bundle with 16” Jack Skellington School Bag with Front Pocket, Plus Water Bottle, Stickers, More | Nightmare Before Christmas Backpack for Girls. This Nightmare Before Christmas school backpack features adjustable shoulder straps, a zip closure compartment, and a top loop for hanging featuring the colorful artwork of Jack Skellington, Sally, and Oogie Boogie's boys. The Nightmare Before Christmas backpack measures approximately 16" x 12" x 5". This Nightmare Before Christmas backpack for kids has plenty of space for folders, notebooks, and books. The front accessory pocket is perfect for holding Jack Skellington pencils, pens, school supplies, toys, snacks, and more! This durable Nightmare Before Christmas backpack for kids also comes with a Beach Kids water bottle, perfect for staying hydrated all day long. Officially licensed Nightmare Before Christmas backpack school set for kids. Set also includes Nightmare Before Christmas stickers and a Beach Kids bat door hanger.