Here's a backpack called "4 Characters Backpack".
(Gear doesn't make these things up...) And, while not the most creative name it's accurate with Sonic pointing at the top on a pixels background, while Knuckles Tails & Shadow are on the square outer pocket. This pack has a blue solid side pocket, a mesh side pocket (probably for water bottles) & the pixel-squres theme continues over the edge of the pack. The back is plain blue. This is a fall 2017 item, and should be under 20.00 if you can find it. Amazon MAY have it, but where else does it appear?
Additional Info
- Year: 2017
- Region: America