I love the Compass Coffee Klean Kanteen. First, I love the look and slenderness of it. Most 16oz containers are much more bulky. Second, it's almost unbelievable how long the coffee stays hot in there. The coffee stays hot, and I mean hot, for hours. It amazes me how the coffee inside can be boiling hot and when I hold the container, it is cold. There's some amazing science behind that.