>>2131932Stainless steel nalgene, in an insulated pouch.
I only own the one, and bring a regular issue canteen to supplement. Harder to clean, but I got it for free.
The cap on the nalgene is easily removable, and I got a nesting mug that came with some prongs to handle when hot.
>>2131934Because I don't rush anywhere when camping. I ride or hike to a spot, chill for a couple days, and head home.
Putting time and effort in occupies my body, that my spirit may be better devoted to prayer.
Also, filters cost money. Money better spent growing food, paying debts, or giving to the poor.