The cubicbag keeper large is made from original convertible top fabric, as used in automobile production. On average, 80% "leftovers" from convertible top production and 20% new convertible top material were used. The material is virtually waterproof, colorfast, and dimensionally stable, meaning it won't stretch. The cubicbag keeper large is carried over the shoulder using the two long straps. The bag can be used as an XL shopping bag or as a weekender. The special and clear shape of the cubicbag keeper results from the folding principle. When empty, it is flat and can be stowed away to save space. Half-filled, the bag unfolds to the bottom, and when fully packed, it forms a body with rounded sides. Zippers and metal Loxx pull fasteners keep the bag closed in any condition. The interior features an inside pocket and a key ring. Its special shape and functionality make the bag a design object with high usability.