Specialized Bike Pannier - made by Ortlieb. The Single Bag QL3 is a cut above the rest with its large, waterproof zipper and its QL3 rack mounting system that does away with projecting and cumbersome hooks.
The world’s largest waterproof bike bags have plenty of space for everything you need. The Back-Roller Pro Plus is the XL version of the popular Back-Roller Plus touring bag. With a volume of 70 liters per pair.