The Ortlieb Back-Roller Classics are waterproof rear panniers with roll closure. With its symmetrical design and slanted shape on both sides this classic Ortlieb bag provides enough space for pedalling, while also being able to be used individually either on the left or right side of the bike. An internal pocket consisting of main compartment and zippered mesh pocket helps organizing small items inside the pannier. The patented Ortlieb QL2.1 system allows fast and easy single-handed mounting and removal of the panniers, and is suitable for racks with tube diameters up to 16 mm (hook inserts for diameters of 8, 10 and 12mm are included). Once the panniers are hooked onto the rack, the mounting components close automatically. To remove the panniers, you simply lift the handle. The elliptical hook rail on the lower rear side of the pannier serves for additional fixation and prevents the bag from moving around. The mounting system is compatible with almost any bike rack. The panniers are supplied with a shoulder strap and can be carried like a shoulder bag. Two large and highly reflective 3M Scotchlite reflectors ensure safety in the dark. They can be combined with the Ortlieb Rack Pack for additional packing volume.