1Large capacity, can store some items, such as keys, snacks, bicycle accessoriesand so on. 2High-quality material, waterproof, durable, not easy to tear, and easy to wipe the surface for cleaning. 3Humanized design, narrow edge, it will not affect the legs while riding. 4Easy to install, it has 2 straps and can be quickly installed on a bicycle, and is not easy to fall off, easy removal without tools. 5Versatile use, can be used as a tote and storage bag on the bike upper tube, suitable for outdoor cycling.