All panniers work with Old Man Mountain racks! While the rest of our rack frames use robust, oversized tubing, we use the industry standard pannier rail size. What about Ortlieb? Yes! What about Vaude? Yes, those too. Smaller brand panniers also work with Old Man Mountain racks. The rack is designed to work with all brands of panniers.
If you are looking for a recommendation, we are fans of the Revelate Designs Nano Panniers as they are incredibly well made and were designed specifically for our racks.