• capacity: 36-55L
• pocket internal structure: zipper
• internal structure of the package: mobile phone bag, documents, computer pocket
• cover type
• Sex applications: neutral/both men and women
• material: oxford cloth
• function: can breathe, waterproof, wear-resistant, Earthquake resistance, reduce overload
• hard: medium soft
• style: urban Leisure
• Lining texture: polyester-cotton
• Accessory type: Backpack shoulder pad
• Number of girdles: double root
• Popular elements: Sewing thread
• lifting parts: Soft operator
• outer bag type: Open your pocket
• Shape: Vertical style
• suspension system: curved shoulder straps
• Connect a computer Size: 15.6-inches