Made of tear-resistant Cordura and waterproof fabric, the Ortlieb Back Roller Plus Pannier Pair were made for long-distance touring. Rear pannier with roll closureQL2.1 system up to 16 mmIntegrated inner pocketLarge reflectorsShoulder carrying strapOptional upgrade with anti-theft device into the upper railComfortable single-handed operationAll hooks are adjustable to the rack without requiring any tools and can be easily exchangedLower hook is rotatable in 15Adeg stepsUpper mounting rail consists of one piece for high stabilityPVC freeSPECS: Dimensions: H/16.5 x W/12.6 x D/6.7 in.Volume: 2441 cubin inches for pairWeight: 3 lbs. 6 oz.