I'm trying to find a seat bag that works for me. I've tried the MEC Shell Major (probably only available in Canada). It's a very wide bag and rubbed the back-inside of my upper legs a lot. Then I switched to a Topeak Aero Wedge Medium, and that's still rubbing although a lot less.
I'm trying to figure out if this is normal with a bag this size (doesn't strike me as huge). I'm about 5'10", 170lbs, and ride a 56cm Specialized Tricross with a 143mm saddle. With this bag, it is just barely rubbing.
I'd like to be able to fit my repair kit (700x32C spare tube, 2x-tire levers, CO2 cartridge and CO2 valve (pump), and Park AWS-9 tool) for daily commutes, but on the wknds, I'd want to put keys, and maybe a couple protein/granola bars in too. This bag fits all that stuff quite comfortably. Is there a smaller bag, or one narrower at the front, that would still fit this much stuff and be less likely to rub?
Also, has anyone else experienced rubbing with this particular bag?