I had the same problem. Stupid velcro strap wore holes in my bibs.
My BEST solution is a ziploc bag in middle jersey pocket, no seat bag...but...
If you really want a seat bag get one that only uses the rails, Lezyne Micro Caddy is a good option. It has a very WIDE strap that goes under saddle rails.
__________________
Originally Posted by
rjones28
Addiction is all about class.