I have for many many years filtered and stored water in gater-aid bottles and nalgeens. Just this year I tried a bladder for the first time while going through the dry northern PA area (Lehigh area). I used a 100 oz Camelback and I have to admit I was really happy with it, how happy well it will always be in my pack from now on. I felt better hydrated, it was there where and when wanted, and could not be easier to drink from. To think I used to cut the hydration sleeves out of my packs, oh well I lived and I learned from those kids and there newfangled ideas.