Sonic the Hedgehog Backpack for Kids Set - Bundle with 16" Backpack, Folders, Notebook, Water Bottle, Stickers, More | Sonic School Supplies for Boys, Girls. This Sonic the Hedgehog school bag bundle includes one 16" backpack with adjustable shoulder straps and top loop for hanging, featuring colorful artwork of Sonic. This Sonic backpack for kids has plenty of space for Sonic the Hedgehog folders, notebooks, and books. The front accessory pocket is perfect for holding Sonic pencils, pens, school supplies, toys, snacks, and more. This Sonic backpack is perfect for school and can double as a travel bag to take everything you need wherever you go! Set also includes Sonic folders, a notebook, memo pad, pencil pouch, and more. Officially licensed Sonic backpack school set also includes a Beach Kids water bottle, Rex-Man stickers, and a Rex-Man door hanger. Caution: Entanglement Hazard. Keep away from very young children. Do not place around neck. WARNING: CHOKING HAZARD—Small parts. Not for children under 36 months.