My water bottle is the most used piece of equipment I have, it goes everywhere with me and I use it daily. I am also concerned about my health and the environment and love the saying take nothing but pictures and leave nothing but footprints ( maybe its take nothing but memories ) I will not use a plastic or aluminium bottle, it has to be stainless steel ( or Glass ). when i was in the US I had a canteen but since lost it. I met the owner of this company some time back www.puncbottles.com and without being biased I really like their bottles and have a few of them. They are nice shape which makes the easy to hold and carry, made from 18/8 stainless steel and a little lighter than my old bottle. I have a few different lids for them and often switch depending on what activity I'm doing. So on a bike I will use a suck type lid and backpacking a screw lid with a clip to hang from the outside of my pack. I have boiled water in one on camp fire and at home when power was down I would sit in on the stove. They are also very strong and have survived a lot of abuse which I generally treat all things I own. I found them easy to clean with the large opening and easy to see inside in case anything was lurking there. The paint didn't survive the fire but that was to be expected. I give them 9 out of 10.