Large capacity storage and anti-theft design: With a capacity of 48 liters, it can store essential daily cycling items without the need for an additional backpack. Equipped with anti-theft function, it can ensure the safe storage of items and make travel more reassuring. Durable and protective performance: Made of plastic material, it has strong impact resistance and can withstand collisions during cycling. The sealed design combined with all-weather protection features can effectively prevent water and ensure that the items inside the box are dry. Comfortable riding experience: Built in backrest cushion can provide lumbar support for riders or passengers during acceleration, reducing lumbar pressure. Improve riding comfort and make long-term cycling easier. Convenient installation and adaptation: The porous base design can be adapted to various motorcycle racks. The installation process is simple and can be quickly completed by a single person without the need for complex operations.