34Tigernu 3105 TSA Anti theft Waterproof Mens Backpack Work Notebook Laptop Backpack Fit 15.6 17inch Travel Large bag pack Outdoor Backpack men bags for Men

Nylon. 1. menFeatures: 1. Anti-Freeze and Waterproof, High-density High-quality nylon material. 2. Anti-theft zipper, Double-layers four-teeth anti-theft zipper design3. Reflective strip design, Safely walking or driving at night. 4.4. 0 USB fast charging port, Charges up to 20 faster than standard cables and transfers data at 800Mbps via USB 2.0. 5. TSA Lock design, there isn't any key assort with the lock, the key hole is for customs inspecting to protect your backpack men not be opened rudely. 6. Large capacity design, only the extend model can be expandable7. Ergonomic back design, Luggage strap, back anti-theft zipper pocket and the breathable back cushion. 1