A vintage patent diagram shows a baseball at the top with detailed stitching patterns, followed by two unrolled views of the ball's construction and seam layout below. The composition is rendered in simple black line work on a weathered cream background, capturing the technical precision of early 20th-century patent illustrations with their characteristic sparse, informational style. 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.