A commuter train suspended on elevated steel tracks dominates this black and white photograph of Chicago's iconic Loop infrastructure, captured from directly below to emphasize the geometric complexity of the structure and the urban canyon it creates. The composition layers the train car's curved metal body against the sharp angles of surrounding buildings and support beams, creating a dense, architectural study in contrast and industrial geometry. 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.