Evening. I currently have an old Camelbak Mule and really like it but occasionally I find that when using a full reservoir, things can get a bit cramped in the pack, so I am looking for advice / experience / recommedations for something with a bit more room inside to carry a few extra bits on longer rides. My Mule is fine for my normal riding but would like to have to little bit more room for bigger days.

Interested in responses to this post too.

Anyone using an Octane 22LR?