This is not a thermos. It's best use is to hold your cooking water. 18oz is just not big enough on camping/hiking trips. I found myself having to fill up too often. Beside all that it's still a great canteen. The loop cap comes in very handy. I just need to get a bigger size.

Bought the 18oz for my sister, I have the 27oz myself. Tough, lightweight, and just the right capacity. Works as advertised; there really aren't any smells that linger with the stainless steel. The only problem I have with it is that the design of the neck sometimes makes water splash out if you lift it too quickly when there isn't much water inside, but that's really more my fault. Again, great bottle(s), would buy more.

I bought this for my auto's cup holder. Its spill proof and fits snug. I like the food grade steel rather than plastic.

Works great. Funny aftertaste for maybe 2 uses but after that nothing but great tasting clean water. I bought several a few 18 oz and a few 27 oz. The 18 oz works great for me b/c i am notorious for filling up 32 oz bottles and never finishing w/ these i usually drink about three. The smaller size makes me want to drink more. But if you are a big water drinker the 18 might just make you mad.

gave these as 'green' gifts this year - loved by all. great bottles, durable, no strange taste.

Not only great for the gym, but my daughter uses her bottle to take water from home to work to make tea. The water at work tastes terrible. The Klean Kanteen bottle provides clean tasting water.

We ordered 3 bottles which we received within 4 days. The bottles fit nicely in the holders in our cars. They are well made. Water tastes better from these bottles then from plastic bottles. A good purchase.

wide mouth makes it easy to add ice in the warmer weather. got a neoprene sleeve for it in the dollar store which keeps the ice in there much longer, even on the golf course. choice of tops is good for different activities.