This is a knapsack. It's a lovely item with a gray check pattern with blue and red lines, and thick rope-like straps. It belonged to my niece, but she didn't use it much, so I'm selling it. It might be a store novelty item. How about using it as a sub-bag for school? ◾️Size Width: 35.5cm, Height: 43cm I think it's a wool-like material.