This model is over 30 years old and features an enamel-like material. It has a zipper at the bottom that can expand the capacity. There are scuffs on the surface and discoloration on the straps, but the inside is clean. Please check the photos. The inner pouch is removable. The capacity can be adjusted with the zipper, and is approximately 35-43cm in height x 32cm in width x 13cm in depth.