Product detailsExcellent waterproofness - Made of high-quality waterproof fabric, the bag is soft and comfortable, and its fabric is and flat and has good wear resistance. The rider can safely put clothes, shoes, mobile phones, cameras, kettles into the bicycle bag. The bag is also equipped with a rain cover to keep the items dry at all times. The unique silver rain cover helps for night riding.Easy to use - Easy to install, no tools required. This bicycle rear seat bag features two side quality buckles and a strong shoulder strap. Male and female riders can also use the bicycle bag as a handbag or shoulder bag.Double protection - The four sides of the bicycle trunk are thickened to provide cushioning and reduce vibration when driving on uneven roads. The kettle compartment rope buckle is designed for easy removal and fixing of the kettle. The kettle compartment is equipped with wide-brimmed lights and reflective strips, with wide reflections on both sides of the bag for double safety when riding.Side pocket extension - The lixada bicycle bag supports extended functions on both sides to meet more capacity needs. If not needed, close the zipper. At the top of the bicycle trunk is a mesh bag with a shrink strap that secures the bicycle accessory, such as a mini pump.Note: Please fill the main compartment before using the side pockets.Packaging information - bicycle back pocket with rain cover and shoulder strap, the maximum capacity of 25L;Unstretched size: 35 * 23 * 19cm / 13.8 * 9 * 7.5in, stretch size: 28 * 23 * 34cm / 11 * 9 * 13.4in.