1. Suitable for short to medium-distance travel 2. The side can be extended to serve as a pannier bag, and the height can also be extended to increase the internal volume 3. Thickened soft padding, suitable for placing cameras and other items 4. Approximate dimensions (unexpanded) 322618CM 5. Extended single-side dimensions are approximately 32cm high and 255cm wide Net weight: 0.67KG/strong polyester fabric 0.85 6. Premium unbranded black pannier bag, suitable for disc-brake mountain bikes and even road touring bikes, with a wide range of applications 7. When unfolded, the pannier bag forms a short-trip vehicle pannier bag with side bags 8. The material of the bike bag itself has a very good waterproof coating 9. The main compartment of the pannier bag can be used to store some daily items, even DSLR photography equipment, because the bottom has a very thick padding layer that provides excellent shock protection 10. There are reflective strips on both sides and the back, which can serve as a good warning in low-light conditions 11. Rear side: Can hold a standard water bottle or even a large soda can, and has reflective strips to ensure visibility and serve as a warning during night rides