Sonic the Hedgehog Backpack Set - Bundle with 15" Backpack Featuring Tails, Knuckles Plus Stickers, Water Bottle, More | Sonic the Hedgehog School Bag for Boys. This deluxe Sonic school bag bundle includes one 16" backpack with adjustable shoulder straps, zip closure pockets, and top loop for hanging. Backpack features colorful artwork of favorite Sonic characters Sonic, Tails, and Knuckles. Show off your love of Sonic in style! This backpack is sure to be a hit with videogame fans and will pair perfectly with all other Sonic the Hedgehog merchandise. This large Sonic backpack is perfect to take to school and can also double as a travel bag to take everything you need with you anywhere you go! Officially licensed Sonic the Hedgehog backpack set for kids, boys and girls alike. This set also includes a Beach Kids water bottle, Rex-Man stickers and a Rex-Man door hanger. For ages 3 and up. Caution: Entanglement Hazard. Keep away from very young children. Do not place around neck. WARNING: CHOKING HAZARD—Small parts. Not for children under 3 yrs.