I use a 3L camelbak omega, best bladder I've found, and hang it vertically inside, alot of packs have a sleeve with a small strap to hang it from. putting in the lid makes the pack awkward and then the bladder doesn't feed right either, often getting air in the tube, i have a 2L for backup and always take a filter .
I pack 2 of the Cabela's 3L open top bladders. I go through a lot of water when I hike so I always make sure I have enough. I have two Camelback bladders but I don't use them anymore as the Cabela's ones are easier to clean, fill, dry, add ice to and roll up into a nice little roll when empty. I used to carry both the camelback bladders then I got a Cabela's one to try, it is going on 4 years old and has never leaked so I picked up another one last year.
I use the 2 pockets on my X2 and carry the 2 bladders I talked about above. They take up a lot of room but for just an all day outing I can haul all the water I need and all of my gear. The halftrack is big enough you could probably make it work for a few days in good weather.
Originally Posted by *******