This backpack features a 'very glossy' Sonic design. While each of the characters here are all in CG, Sonic (and the logo at the top) are covered in a very shiny / glossy high polished plastic. This is thick, and rather stiff. It maintains a high shine as long as it's not scuffed up. This draws attention to the Sonic image, when you tilt it in the light. (It's difficult to photograph though, you can see a bit of it at the top of his head/streak down the face & sparkle on logo)
The bag also features circles with Silver, Tails & Knuckles in them, & Eggman is waving his fist up there on the top oval pocket. The front has a pale blue checker background, the edge has dark blue checkers & all borders & zipper pulls are a bright yellow for contrast. It has shoulder straps & mesh side pockets. This is a nicly designed bag, if you're careful with the glossy bits.