What hydration bladder would be a good...
What hydration bladder would be a good match for this pack?
I'd get the CamelBak Antidote (cheaper option) or the MSR Hydromedary (more expensive). I've always used CamelBak and never had any issues, but the MSR one looks really nice as well. I use MSR gear for cooking, etc, and it holds up well. Honestly, they will probably perform about the same, so it's a matter of money. The MSR one does has holes in the top (so you can hang it), which could be nice depending on the intended use.