Smart multilayer design This layered storage with meticulously organized compartments maximizes space while keeping essential items accessible during rides. Ideal for transporting tools, electronic devices and accessories. Effortless storage 8L interior provides ample capacity for daily commutes, with a thoughtful layout to keep essentials organized and within reach. Easy access and intuitive organization Wide opening enables quick access and intuitive organization, allowing you to locate items quickly during tours. Keeping contents visible saves time and effort. Versatile use Rear luggage bag with adjustable strap supports hand carry or crossbody use; reinforced elastic helps keep contents stable during urban cycling or travel. Use scenarios Daily commute: store tools, spare tubes, phone and keys for easy access. Weekend rides: keep power bank, charger and items within reach during shorter trips. Multiday trips: consolidate essentials and keep electronics and accessories organized for easy retrieval.