Here is a new backpack from Bio World.
But the real mystery is why does this keep happening? For some reason, companies love to try to "turn Sonic into THINGS" and it......doesn't work! Even Bio World? In this case, yes. Classic Sonic is somehow now...school bag shaped. The upper back pocket has part of a face on it, there's an arm drawn onto the side, flappy flat ears, some rudimentary small spikes clearly going down the left side there and...are there shoes drawn on underneath? It looks like there may be Japanese writing in blue on the top?
The whole thing is done in black/white (which makes it a bit more abstract...which is fine) but there is checkering on the outer pockets done in matte/shiny of the black material. Sonic was never backpack shaped (unlike say, spongebob) so why they keep trying to physically turn him into one I just don't know. It's probably functionally an ok backpack but it just comes across as odd/maybe a bit less so because he's more abstract here.