9L LARGE CAPACITY - Dimension of 13.2 x 7.9 x 8.65(L x W x H), max 9L storage capacity with 2 inner mesh pocket. This bike rack bag has enough capacity to store all your cycling essentials like bike tire pumps, cable lock, jacket, etc. The elastic drawstring on the rack bag can also help tie a lot of items you need. HIGH QUALITY & FULLY WATERPROOF - This bike rack bag adopts reinforced hard shell polyester coated with PU, featured as water resistant, durable, lightweight and easy to clean. Waterproof materials & water resistant double zipper can help keep your equipment dry. This bag also comes with a rain cover, so don’t be afraid to cycling in rainy day. TOOL FREE INSTALLATION: This bike rear seat bag has 4 adjustable velcro straps, which can be attached to bicycle rear rack with no other tool in seconds and ensure its max stability and security from getting caught into its wheel. Adjustable straps make it suitable for most bicycle racks, such as mountain bike, road bike, e-bike, hybrid bike and gravel bike. MULTIFUNCTIONAL BIKE BAG - This bike bag can used as a shoulder bag with the gifted shoulder strap or a hand bag with the hook on the bag. When off the road,The rack pannier bag is not only used for bicycle cycling but also can be used as a handbag, mountain climbing bag and shoulder bag for travel, camping, picnic, ski and more occasions. REFLECTIVE STRIPS & TAILLIGHT HOOK - The reflective strips and logo on the rack bag increase the safety in night riding. The reflective strips and logo design increases night time visibility and the hanger on the strip can hold a taillight which can also enhance cycling safety at night or in low light situation. ASIN B0C1VJG5L1 Size Large Color Black Pattern Solid Capacity 9 Liters Brand Name ROCKBROS Shell Type Hard Strap Type Adjustable Style Name Fashion Unit Count 1 Count Handle Type Web Handle Item Weight 0.6 Kilograms Closure Type Zipper Material Type Polyester Mounting Type Rack Mount Item Type Name Luggage- Trunk Pocket Description 2 inner mesh pockets Number of Compartments 2 Item Dimensions L x W x H 13.19 L x 7.87 W x 8.66 H Compatible with Vehicle Type Bicycle