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I have the alpkit fuel pod top tube bag. That is pretty good.
I have the restrap saddle pack. It is quite good. However, a bit which allows the strap to be threaded through to secure the dry bag broke when i was trying to secure it, forcing me to tie a knot in it for the rest of the trip. Also, because i have my saddle quite low, the seat post clamp wore an indentation into the saddle holster meaning it hangs to one side. I might consider replacing it with an apidura one. I get the impression apidura is better constructed than alpkit, although I do not know this for certain.
CowHen
Condor has a good range of apidura and ortlieb stuff.