Strong, streamlined and unusually practical in Massachusetts or Mongolia. The Ortlieb Back-Roller Plus is the ideal bike bag for those who prefer the convenience of the roll closure system. The durable, waterproof, dustproof, abrasion-resistant and high quality Cordura fabric ensures optimal protection for your gear. Equipped with the sophisticated QL2.1 system with self-closing hooks, the Ortlieb Back-Roller Plus attaches to your bike in a flash. And simply use the easily detachable shoulder strap to carry your bike bag comfortably once you've arrived at your destination. Anything else to consider? Well, you'll want to select your favorite from among the range of fashionable colors. Further features: QL2.1 mounting system for all bike racks with tube diameters of up to 16 mm + special inserts allow you to reduce the size of the rack hooks to 12, 10 or 8 mm + 3M Scotchlite reflectors + inside pocket Advice: The Back-Roller and Front-Roller (except City-Line models) can be combined with the Ortlieb Rack-Pack on the rear rack.