A golden anatomical diagram of a tuna fills a black background, with Japanese characters labeling each section of the fish's body in a technical, educational style. Bold yellow lettering reading "マグロの解剖学 TUNA ANATOMY" anchors the bottom of the composition, creating a striking contrast between the precise linework and the dark, sand-textured ground. Sewn from a durable canvas-like exterior with a soft lining and made to order, in three sizes up to one that fits a tablet. A catchall for toiletries, art supplies, or small electronics, carrying an independent artist's work instead of a plain zip bag.