Backpack with vacuum function for greater capacity

1. Large capacity, expandable, partition design, easy access
2. TSA combination lock design, better protect the contents of the bag
3. Elastic sponge shoulder strap design, effectively reduce the pressure on the shoulder
4. Waterproof and lightweight fabric
5. Convenient design, the bag can be fixed on the suitcase with wheels

6. Side adjustable locking buckles for better stability of the backpack
7. Shoulder straps with locking buckle
8. Comfortable thickened handles, easier to travel