Tigernu Expandable Men Business Anti-Theft Laptop Backpack With USB Charging Port, Reflective Str...

1. High-Density Waterproof & Cold-Resistant Material: Made from eco-friendly waterproof and frost-resistant materials, tested at -60 degrees Celsius with no damage or cracking. Features waterproof zippers and Level IV waterproof testing to ensure item safety in wet and cold environments.
2. Quadruple Tooth Anti-Theft & Anti-Burst Zipper: Patented theft-proof and burst-resistant zipper with a double-layer design and reinforced zipper core wire to prevent bursting or deformation.
3. Nighttime Safety Reflective Strips: Enhances nighttime driving or walking visibility, reducing accident risks by ensuring long-distance detection.
4. Dual Independent Laptop Compartments: Two separate padded compartments for 15.6-inch/17-inch laptops and 12-inch tablets. Multi-layer interior design organizes daily essentials and fits 23 days of clothing.
5. TSA-Approved Combination Lock: Ensures travel security with a customs-friendly lock.
6. USB Charging Port: Convenient hands-free charging during travel.
7. Ergonomic Back Design: 3D honeycomb-shaped back padding for breathability, comfort, and reduced pressure.
8. Capacity: Standard version fits 15.6-inch laptops; expanded version fits 17-inch laptops.
9. Main Material: High-density waterproof nylon.
10. Lining: 210D jacquard lining.

Note: Both versions use identical materials and designs. The expanded version has slightly different side pocketschoose based on your needs.