BeiDuoMei Student File Bag A4 Double Layer Classified Storage Exam Paper Data Bag(Green)1. Material: canvas 2. Student handheld organizer bag, selected waterproof canvas fabric, no odor, strong and durable, not easy to break 3. Widened handles, labor saving hand, solid stitching, not easy to crack, waterproof lining, not easy to fall off the skin 4. Smooth zipper, a pull to the end, not stuck, stitching, wear resistant and solid 5. Double layer large capacity, easy to organize A4 size textbooks test papers and other stationery, neatly