I've been using klean kanteen for 6 years now, and aside from a few small dents, this is by far the single greatest water bottle created. I love how clean tasting the water is. I wash my bottles once a week in the dishwasher and the water always tastes clean. Even if the bottle sits in your car heats up and then cools back down, there are no strange plasticy tastes. I have a 27 oz in my bottle holder on my bike and a 40oz in my pack, and these bottles should last a lifetime.

http://www.kleankanteen.com/2product...teen-27oz.html