The 15" tank bag notebook is made from original convertible top fabric, as used in automobile production. On average, 80% "leftovers" from convertible top production were used, and 20% was new convertible top material. The material is virtually waterproof, colorfast, and dimensionally stable, meaning it won't stretch. The bag is carried over the shoulder using the short handle or the adjustable strap. It opens fan-shaped and is divided into three compartments by two well-padded dividers. The notebook compartment is located in the middle, providing optimal protection from the outside. The side interior compartments can accommodate A4 documents, charging cables, a cell phone, and other personal accessories. The clear body of the bag exudes elegance and timelessness.