REASONABLE CAPACITY: 1.5L capacity is just the right amount of capacity to meet your daily storage needs. You can store a flashlight, gloves, tools, cell phones, keys, etc. EASY AND STRONG INSTALLATION: Installation is quick and easy thanks to three Velcro fasteners. HIGHLY REFLECTIVE: Zipper, elastic drawstring, logo and other reflective elements effectively warn oncoming vehicles and improve night driving safety. OTHER DETAILS: -smooth zipper, easy to pull. -elastic string design, increases storage space, can accommodate pump, gloves, etc. -with a shoulder strap of 126 cm, can be used as a shoulder bag. -small mesh pockets on the side of the structure will accommodate headphones and other small items.