In extended touring it shows what its made for. The tough rear pannier made of tear-resistant Cordura fabric is waterproof thanks to its handy roll closure. With its QL2. 1 fixing it is quickly mounted and taken off the bike rack. And once you arrive at your destination you can carry the Back-Roller Plus just like a shoulder bag thanks to the included strap. Further features:. 3M Scotchlite reflectors, inner pocket. Height:42 cm. Upper width:32 cm. Bottom width:23 cm. Depth:17 cm. Weight:1680 g. Volume:40 l. Fabric:PS36C. Advice: The Back-Roller and Front-Roller (except City-Line models) can be combined with the ORTLIEB Rack-Pack on the rear rack.