Vintage patent diagrams for basketball equipment fill a black ground with white line-drawn technical illustrations, including hoop assemblies, ball cross-sections, nets, and court layouts rendered in the precise, annotated style of early 20th-century patent documentation. The composition arranges multiple views and components across the surface with small text labels and patent dates, creating a dense, educational quality that celebrates the sport's mechanical ingenuity. 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.