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. Constructed from woven polyester with a soft microfiber lining and a sturdy zipper, made to order for 13 and 15 inch laptops. Everyday protection carrying an independent artist's work, not another plain black sleeve.