Top (thermos) drinking bottle. Keeps the drink cool and a large mouthpiece for easy dishwashing. The coffee didn’t stay hot for exactly the promised time, but was due in part to the wrong, not insulated cap. This is also what Kleen Kanteen's caps do.
The quality seems to be right, I have not yet come to use
Great product and in yellow it looked like that. The cold stays cold all day at room temperature. I think you don't get warm even when warm.