With QL2 mounting system adjustable without any tools Compatible with all standard racks with a diameter up to 16 mm Highly reflective 3M Scotchlite reflectors Possibile to use only one bag (e.g. for sports shopping picknick) Comfortable to carry (shoulder strap included) Can be easily cleaned Panniers come as a pair with shoulder strap (length approx 75cm) Waterproof 42 x 32 x 17cm 40L 1.5kg An extremely light rear pannier made from cordura fabric with roll closure & using the QL2 mounting system. Thanks to the hermetical closure the Back-Rollers allow- if need be- to cross rivers & creeks because bridges are often not there where you need them. But also for normal bike tours or in daily life for shopping this spacious classic bag is the one to go with. With the shoulder strap the Back-Roller can be converted into a shoulder bag within seconds. The panniers can be combined with the ORTLIEB Rack-Pack size S or M on the rear rack so that tent sleeping bag & sleeping mattress are also packed waterproof.