1. Material: EVA
2. Retractable strap
3. Built-in steel ring
4. Rollable lid
5. Breathable mesh on top
6. Easy to open and close with zipper
7. Charging single head oxygen pump
8. Capacity: 11/19/23/28/35L
9. Unit weight: 450/730/860/930/1000g
10. Dimensions: 30x20x19cm,35x23x24cm,40x24x24cm, 45x26x24cm, 50x29x26cm