I love bags, and I used this one for a while before buying a different one. I haven't used this one since. The size is approximately 23cm in height, 38cm wide at the top, 24cm wide at the bottom, and 17cm deep. As shown in the photos, there's another storage space on the side that opens and closes with zippers on both sides, which is convenient. The inside is silver, but as you can see in the photos, some of the silver coating is peeling off.