Package size: Medium Capacity: 20-35L Package internal structure: ID bag, mobile phone bag, laminated zipper bag, zipper pocket, computer pocket Open cover: zipper Applicable gender: neutral / male and female Material: Oxford cloth With lock: No With or without rain cover: None Function: waterproof, breathable, wear-resistant, anti-theft, shockproof Processing method: printing hardness: medium soft pattern: solid color Applicable gifts occasions: employee benefits Style: Fashion Sports Lining Texture: Polyester Accessories type: USB charging interface Shoulder strap number: double root Popular elements: contrast color Lifting parts: soft handle Type of outer bag: three-dimensional bag Luggage shape: vertical square