Multi-function computer backpackBag size: medium Capacity: 20 35L Package internal structure: ID bag, mobile phone bag, computer pocket, camera pocket Opening method: zipper Applicable gender: male Material: Oxford cloth Whether with lock: No With or without rain cover: None Function: waterproof, breathable, wear resistant, anti theft, lightening, shockproof Brand: other Model: Backpack Processing methods: soft surface Hardness: Soft pattern: plain style: Casual Lining texture: