Ortlieb Back-Roller Free Single QL3.1 Pannier - 20L The Ortlieb Back Roller Free Pannier - 20L builds upon the success of its predecessor, the Back Roller Classic, which has proven its worth countless times over. The Free line maintains exceptional performance while moving away from PVC, instead utilising robust polyester fabric to create a waterproof pannier that offers the same timeless tarpaulin aesthetic with impressive durability. The hermetic roll-top closure ensures all contents remain protected from the elements. A key innovation is the Quick-Lock3.1 mounting system. This practical, self-locking mechanism makes attaching the pannier simpler and more secure than ever. The bag locks automatically when mounted and remains firmly in place regardless of terrain, while releasing effortlessly when lifted. The Quick-Lock3.1 mounting system, with its three attachment points, fits any standard luggage rack and offers adjustable height and angle settings. Its flat locking elements sit neatly against the bag, making it practical for daily use. Organisation comes courtesy of a fixed inner pocket featuring a main compartment and zipped mesh pocket. The pannier's versatility can be enhanced with accessories such as the Commuter Insert or Packing Cubes. When off the bike, the included shoulder strap transforms the Back Roller Free into a comfortable shoulder bag.