The Back-Roller design in an elegant and reduced look! Thanks to the practical Quick-Lock2.1 mounting system with self-closing hooks, the bags can be quickly and easily hooked to almost all luggage racks. The system is adjustable without tools, the 16mm hooks can be reduced with enclosed inserts (8, 10 and 12mm). The lower hook rail is used for additional fixation and has softer contact surfaces, which is particularly gentle on the luggage carrier. A fixed inner pocket, consisting of main compartment and mesh pocket with zipper provides order and overview. With the shoulder strap, the Back-Roller design can be worn comfortably as a shoulder bag. Features of the ORTLIEB Back-Roller Design PS33 - QL2.1 bike bag With Quick-Lock2.1 suspension system for luggage carriers up to 16 mm tube diameter Reducers for tube diameters 8, 10 and 12 mm with anti-scratch function to protect the luggage carrier are included 18mm and 20mm hooks available separately as accessories (e.g. for e-bikes) Upper QL hook and lower sliding hook adjustable without tools Can be used right or left due to symmetrical shape Can be combined with the ORTLIEB Rack-Pack 24 L or 31 L on the luggage carrier With integrated inner pocket and shoulder strap Easy to clean inside Bright reflectors made of "3M Scotchlite reflective material Lower hook rail with anti-scratch function to protect the luggage carrier