This is the smaller size. The color is light gray. The fourth photo is the closest to the actual color. The photos of the person wearing it are of a different color. Size: Approximately 21cm (height) x 21-23cm (width) x 10cm (depth) Please allow for slight variations due to amateur measurements. The width is measured from the bottom to the opening. Used once or twice for about an hour each time. There is one tiny, barely noticeable scuff on one corner, but otherwise, there are no stains. The shoulder strap is unused.