This is my new (used) US army water canteen/ mug system I am currently using for my bug out bag setup. I have been working on my bug out kit for some time now. Still in the works and I have not really perfected it. I guess it will forever be a work in progress. The water bottle system (that’s what I prefer to call it) is an important part of the kit. I can only last 3 days (technically) without water. So, having a system to procure, purify and to contain water is important to me. Here is a recent water bottle system I got recently.