The Ortlieb Back Roller is an easy to use pannier for your bike's rack. The material is 100% waterproof and all seams are sealed for complete water protection. This model boasts the QL2.1 mounting system: two side-adjustable hooks at the top, which open when pulling on the handle, and one side-adjustable hook at the middle for the vertical tube of your rack. *Cyber* series Ortlieb products are technically identical with regular models, but are made with the super showy cyber pink and cyber blue colourways. - Package includes one pannier - IP64 protection: rustproof, protects from water spray from all directions - Roll-up closure - Shoulder strap - Flat inner pocket with zipper - Reflectors - Welded seams - Manufacturer's recommendation for max. load: 9 kg per pannier - Main material: tarpaulin-like, super strong PD 620 - Additional material: slightly lighter, still highly durable PS 490 - Made in Germany - Five year guarantee Volume: 20 liters, if the mouth of the pannier is rolled