There is no tag, but it is a brand new, unused item. Please refer to the photos for the size. The back is made of mesh material, which makes it breathable and less likely to get stuffy. It's also lightweight, so it shouldn't be a burden for small children to carry. It's also recommended as a bag for nursery school or kindergarten. It has a cute color and design that can be used by both boys and girls. Please note that it will be folded when shipped.