1. Suitable for short-distance travel 2. The side can be expanded as a pack bag, and the height can also be expanded to increase the internal volume 3. Thickened soft pad can hold items such as cameras 4. Approximately sized (not expanded) 32 x 26 x 18CM 5. Expand unilateral dimensions by 32 cm in height, 25 cm in width, and 5 cm in width (approximately) Net weight: 0.67KG/tough polyester fabric 0.85; 6. Hardcover unmarked black backpack, which can be used in disc brake mountains and even road wagons, and has a wide range of applications. 7. After the pack is unfolded, it forms a short distance travel vehicle pack with two side bags