Flexible and spacious The Mountain Bike Quick-Release Rear Bag offers a compact yet roomy compartment for essential items during your rides. Its small footprint reduces bulk while improving your riding experience. Practical and durable Constructed from high-density 600D fabric for wear resistance and long life. Generous capacity to cover daily needs, with interior pockets and hooks to organize keys and other small items. Lightweight and portable Weighs about 122 g, adding minimal weight to the bike and staying easy to carry when off the bike. The lightweight design ensures it does not burden handling during your ride. Enhanced safety features Includes a rear-light mounting slot to improve visibility for pedestrians and motorists at night. Reflective elements on the bag boost visibility from all angles. Use scenarios - Day rides or commutes: store keys, wallet, phone, and small tools for quick access. - Weekend trails or bikepacking: carry spare tubes, patch kit, energy snacks, and multitool. - Night rides: attach a rear light via the slot and rely on reflective design to enhance safety. Note: designed for mountain bikes and built with a secure, low-profile profile to minimize interference while riding.