CoolChange BIKE TRUNK BAG 10L, EXTENSIBLE LARGE CAPACITY BICYCLE REAR SEAT COMMUTER PANNIER-- A MUST-HAVE FOR COMMUTERS AS YOUR PERFECT COMPANION ON THE WAY TO GYM, SCHOOL AND WORK! PRODUCT FEATURES： 1. 10-35L Extensible Capacity: Fit a bike lock, change of clothes, snacks, small bike tools, and water bottle in this bag for convenient storage. 2. Multi-compartments: WIith one main compartment, two side zippered pockets and another side pocket. 3. Mesh Pocket with Cords: There is a bungee cords on the top of trunk bag which can be easily put in or take out your items like a rain jacket,gloves, umbrella, repair items, tripod etc. 4. Lengthen Safe Reflective Tape Design： Located around the bag for visibility at night. 5. Water Bottle Bag： The elastic cords on the water bottle bag secure your water bottle, drink or some tools tightly to prevent them from getting out. 6. Multi Functions: Besides bike pannier bag, it can also be used as a detachable hand bag, shoulder bag or outdoor travel bag, work bag, sports bag, camping bag, etc. Different ways to hang up bags offer you more comfort. You can take the bag everywhere for a variety of uses. SPECIFICATIONS: Total Capacity: 10-35 L; Dimensions: 13.0" x 9.5" x 8.7" (33 x 24 x 22 cm); Weight: 45.8 oz. (1.3 Kg). OUR PRODUCTS ARE DESIGNED TO HELP YOU ENJOY SPORTS WITH GREATER COMFORT, CONVENIENCE, AND STYLE. Gear up for your next ride with the CoolChange cycle and make sure that you have everything that you need for your trip