Password Lock Large Capacity Waterproof Laptop Backpack with USB Port Features: 1. Made of high-quality fabrics, the outer shell automatically slides off when exposed to water and is impermeable, waterproof and wear-resistant. 2. Customs password lock design, 999 password combinations are more secure 3. 180-degree opening and closing large-capacity dual compartment design, independent digital protection, functional compartments, convenient and orderly access 4. Three-dimensional honeycomb back pad on the back, comfortable, breathable and heat dissipating 5. Side USB interface design makes charging more convenient 6. S-shaped adjustable shoulder strap, comfortable and burden-reducing 7. Metal double zipper design, smooth and durable 8. Widened handle design, comfortable and not tight. 9. Diamond facet structure design, three-dimensional and stylish 10. Thickened sponge independent digital compartment to fully protect laptops 11. The trolley case fixing strap design on the back makes traveling more convenient Product parameters: 1. Material: ABS with film 2. Can accommodate computer size: 17 inches 3. Function: breathable, waterproof, anti-theft, burden reduction, large capacity 4. Product size: 45 x 32 x 20 cm 5. Weight: 1165g 6. Note: Only backpacks will be shipped, nothing else!