Matt H. wrote a review of SciCon S-Case 390 Saddle Bag on August 17, 2013
Familiarity: I've put it through the wringer
Perfect bag for a roadie, holds all of the essentials (no iPhone) without looking like a fanny pack or boat anchor on the back of your steed. I have larger packs that still get some use, but I like them less and less having used this pack and it's simple yet ingenious mounting system. You don't need to fiddle around with clips and Velcro trying to get to your gear, just twist and go. As far as the other reviewer who lost it on a ride, I might not recommend it on intense single track stuff, but that being said I have 4 of these on different bikes (cyclocross, road, mtb) and haven't lost any.