Topeak mtx. Personally, I prefer the bag without the fold-out side pockets. If you don’t use them, they are wasted space. For a credit card overnight tour, the largest bag with fixed pockets will be fine.
I’ve ridden mine off road without issue. They are great.
Note there are three styles, depending on frame size. I chose the V – lowest mounting to keep the weight low. I also added a Topeak mudflap and a Cateye rack-mount for my rear light. There is a pull out tray that I don’t use, but will hold a small inner tube, and a rubber strap that isn’t that useful either.
Avoid the cheapest version, the bag clip is plastic and snaps easily.