Large-capacity Outdoor Travel Backpack Trendy Backpack Simple $ 17.32 Product details Capacity: 20-35L The internal structure of the bag: mobile phone bag, certificate bag, computer pocket Opening method: zipper Applicable gender: neutral/male and female Material: Polyester Whether with lock: No With or without rain cover: None Function: wear resistance, shock resistance, load reduction Processing methods: soft surface Hardness: soft Pattern: stitching Style: urban simplicity Lining texture: polyester Accessories type: buckle Strap root number: double root Popular elements: stitching Carrying parts: soft handle Outer bag type: zipper bag Bag shapes: square vertical section Carrying system: air cushion strap Whether there is back cushion cotton: Yes Accommodate computer size: 15 inches Size Commodity Picture