This is a backpack I bought with a friend in Harajuku. Although it has a women's tag, I think it can be used by girls from elementary to junior high school age. (Examples: school bag, bag for lessons, etc.) It's large enough to fit A4 files. It also has a gusset at the bottom for stability. Of course, the length is adjustable, and there's a zipper on the outside, making it perfect for storing small items. The outside zipper is surprisingly large, so small notebooks and stationery can fit in it with room to spare. There are some stains on the base of the shoulder straps. (Please check the photos) Thank you for your understanding. Backpack, Knapsack, A4 size compatible, for school, for lessons, elementary school students, junior high school students, high school students, university students, working adults