20 inch Multifunctional Large Capacity Waterproof Double-Shoulder Backpack with USB Interface(Black)

20 inch Multifunctional Large Capacity Waterproof Double-Shoulder Backpack with USB Interface is designed for everyday use. It features a large capacity and includes an external USB charging design.

• Product type: Double-shoulder Bags
• Compatibility: Large Capacity Backpack
• Material: Waterproof PVC
• External USB charging design
• Color: Black
• Intended use: Everyday use
• Back adopts high elastic 3D honeycomb back pad for comfort and breathability
• Back trolley strap design for easy travel with trolley case
• High-brightness reflective strip for safety during night travel
• Waterproof, stain-resistant, and easy to clean
• Capacity: 17 inches/19 inches/20 inches optional