1. Waterproof, Light Weight material
2. Anti-theft functional backpack
3. Multifunction pocket, card pocket, invisible pocket
4. Advanced storage design
5. USB Plug more convenient
6. Padded strap for long time comfort carry
7. Durable strap to attach to trolley case
8. Smart fingerprint lock: compare with traditional lock and combination lock, you may forget the keys and passwords, but the fingerprint is always with you, Fashion High-Tech Convenient