Large capacity design: 8L capacity for daily rides, allowing you to carry all your essentials in one convenient package. Waterproof protection: Waterproof fabric reduces rainwater penetration, helping your belongings stay dry during unexpected weather. Usage options: Removable shoulder strap can be tucked away, enabling use as a shoulder bag or crossbody to fit your travel needs. Easy access opening: Large opening enables quick grabs, improving practicality during riding. Compatibility and construction: Designed for bicycle shelf tail bag setups, providing reliable performance as an on bike accessory. Materials and performance: Made from waterproof fabric to enhance weather resistance and durability for everyday use. Use scenarios: Daily commuting: carry daily essentials such as wallet, phone, keys, and small tools while keeping hands . Errands on the go: convenient capacity for light groceries or purchases without needing a separate bag. Short rides and tours: extra storage for light gear, snacks, or items on weekend trips. Size and function: 8L capacity balances ample storage with compact form, suitable for riders needing organized space without bulk.