This CamelBak double-wall vacuum insulated bottle is an improvement over the Zojirushi "mug" that I was using before. I really like the included cup with lid - I don't use it often, but it is way better than trying to drink hot coffee directly from a bottle, even with a "mug" lid. The insulation on this bottle is good, but not great - I have other bottles that retain heat better. The neck and cap of this bottle feel warm when in use, so I know heat is getting out there.
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