New Men's Backpack Fashion Style Leather Middle School Bag Men's BagBag size: large Capacity: 20 35L Package internal structure: ID bag, mobile phone bag, laminated zipper bag, zipper pocket, computer pocket Opening method: zipper Applicable gender: male Material: PU leather Whether with lock: No With or without rain cover: Yes Function: waterproof, wear resistant, burden reduction Processing methods: soft surface Hardness: medium soft pattern: plain Lining texture: polyester cotton Accessories type: handle Strap root