A technical patent diagram for a baseball dominates the upper portion of this chalkboard-style illustration, rendered in white linework against deep charcoal gray. Below sit two detailed cross-section views showing the ball's internal layered construction, with measurements and annotations completing the scientific breakdown of this classic American sport's fundamental object. 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.