I would like to try some Hydration Bladders for Hunting.
I don’t like having to take off my Pack to get out water and I don’t like hanging Bottles on my Belt

Anything in particular to be aware of when dropping them into Packs?
I think I have good spaces in my Packs/Bags but won’t really know until I try.

Was thinking about fairly small bags in the 1.5ML range (using Nalgene Bottles now).
I’ve seen people recommend “Source” bladders in other threads.

Thanks