1. Material: polyester
2. Capacity: folded: 15L, unfolded: 25L
3. Dimensions: folded: 31 x 12 x 37 cm, unfolded: 31 x 12 x 57 cm
4. Weight: about 920 grams/piece
5. Large-capacity design to meet daily travel needs
6. Comfortable fabric, more breathable
7. Adjustable buckle design, easy to use