I use a hydration pack and a canteen (metal Nalgene).If my water bladder should rupture I have the canteen as a back up.For water sanitation it's a Sawyer Mini and clorine dioxide tabs. If that should fail I can boil in my canteen and cup. I have never had to go to those extremes. It's nice to know I can. A wide mouth metal canteen is easier to scoop snow into in winter. Place it between layers of clothes to melt with body heat. For in my neck of the woods it's solid kit.....

BOATMAN
John