The multifunctional Urban Back-Roller is an ideal single bag for bike riders who are looking for a spacious, waterproof bike bag to accompany them on their way to work or school. Made of a special blend of Cordura fabrics, the bag has a textile appearance that is a perfect match for both casual and business attire. Thanks to a polyurethane coating on the inside, it is nonetheless absolutely waterproof. The practical QL mounting system enables you to quickly and conveniently attach the bag to your bike rack. The bag&';s internal pocket, consisting of a main compartment and a zippered mesh compartment helps you to keep things orderly and immediately accessible. A detachable shoulder strap allows you to comfortably carry the Urban Back-Roller once you set off on foot. FURTHER FEATURES: + 3M Scotchlite reflectors Bags with the Quick-Lock3.1 mounting system include a mounting set that allows you to use the bag on standard luggage racks without the integrated QL3.1 mounting elements. The mounting set weighs only 140 g and attaches securely to the rack. If your luggage rack already has an integrated QL3.1 mount, such as our Quick-Rack, you do not need the mounting set. HEIGHT 42 cm | 16 inch LOWER WIDTH 23 cm | 9 inch DEPTH 17 cm | 6 inch VOLUME 20 L | 1220.5 cu inch