【10L Large Capacity】This waterproof saddle bag offers enough space for your bike accessories, such as tools, mini pump, tires, water bottle, etc. 【Waterproof】Our saddle bag is made of polyester + nylon + waterproof lining. It provides comprehensive protection for your belongings. It can be used in various weather conditions, but please avoid riding in heavy rain for extended periods. 【Easy Installation】With 3 adjustable Velcro straps, you can quickly attach and detach the bike saddle bag to mountain or road bike frames. 【Reflective】The front of the bike saddle bag features a reflective logo. This reflective logo enhances visibility at night and increases safety when cycling at night. 【Adjustable and Foldable】The saddle bag is adjustable and foldable. It can be folded into a small bag or rolled up into a large bag. The mesh pocket on the saddle bag allows you to store wet items or water bottles.