Multifunctional business backpack anti-theft usb charging backpack

product information:Product name: school bagMaterial: NylonFunction: waterproof, breathable, lighteningLining Material: PolyesterSize: length 29cm width 14cm height 49cmShoulder strap: adjustablePractical size and internal storage space-Large-capacity storage of books, stationery, etc.Reasonably separate layout-Selected high-density nylon fabricIt has the characteristics of wear resistance, scratch resistance, water repellent, and dirt resistance

Color	blue, gray, purple, black

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