Large capacity and broad compatibility: suitable for different types of bicycles and able to load items of varying sizes. Durable and secure: built to endure use and protect the contents, with multiple installation methods for a secure fit. Targeted for longdistance riders and daily commuters: ideal for cyclists who need to carry items during daily riding and extended trips. Versatile styles with padding: available as rear shelf bags, tail bags, and front and rear seat bags, all with soft padding to protect valuables. Use scenarios Daily commuting: carry work essentials, tools, rain gear, and a packed lunch without sacrificing bike balance or security. Weekend rides or short trips: store spare clothing, snacks, water, and compact gear for convenient access. Extended bike touring: secure wallets, phones, chargers, maps, and small items during multiday journeys. Key attributes Function: large capacity storage with multiple installation options to fit various bike frames. Compatibility: suitable for different bicycle types. Size: large capacity designed to accommodate items of varying sizes. Material and padding: durable construction with soft padding to safeguard valuables. Performance: secure, versatile mounting options and protective interior for daily and travel use. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.