Product Features：

1. Capacity: The Capacity Is About 25L When Folded Three Times On One Side, And The Capacity Of Two Sides Up Is About 50L
2. Quick Released Design: The Back Contains Quick Released Hooks, Which Can Be Quickly Installed
3. Waterproof Design: Full Waterproof Inner Bag, Seams With Hot Compression Tape +6000MM
4. Waterproof Lining Guard Plate Support: Supported By Five Sides Plate, Stereoscopic And Sturdy, Can Protect The Contents In The Bag
5. Anti-Wear And Anti-Slip: Anti-Slip Leather Is Attached To the Frame Part To Prevent The Frame Paint From Being Worn
6. Multi-Functional Design: Designed with Shoulder Strap And Carry Handle, It Can Be Used As A Shoulder Handbag.
7. Safety: LOGO Reflective Printing On Both Sides Of The Bag body, Enhancing The Safety Of Night
8. The Fixed Position Of The Bag Body Is Locked By A Buckle Function To Avoid Loosening In Bump.
9. Single And Double Sides Can Be Used Freely.