QUALITY MATERIAL：Our School Bag take durable and practical high quality water resistant nylon, the material is anti-tear and easy clearing.Sturdy two-way zipper,smoother,flexible opening and closing.Adjustable padded shoulder straps for carrying comfortable. Side pockets with buckle to avoid stuffs drop down.INTERNAL STRUCTURE :The College Bookbag has a large -capacity main pocket, a laptop computer pocket, an front zipper pocket, two zipper side pockets and a anti -theft zipper pocket. Side pockets can accommodate water bottles and umbrellas.