Be sure to check out Nuclear Sunrise Stitchworks on Facebook. I have both a Revelate Designs framepack and Nuclear Sunrise framepack for my Fargo and even though the Revelate bag is the Salsa endorsed model for a size small Fargo the Nuclear Sunrise pack fits way better. I had to make a template and send him and he had both a seatbag and framepack to me within a week and a half. The quality is superb as well and they are waterproof vs. Water resistant like Revelates. Dont get me wrong both companies make fantastic bags, just sharing what my experience has been.