I’m just amazed that anyone thinks a metal coffee tumbler is superior in any way.

Here’s the ultimate way to drink coffee, after years of experience trying different things:

• large double-walled borosilicate glass mug. You can find several versions of this on amazon, get one that fits your cupholder.
• plastic lid from any other travel cup for when you need it, usually it fits pretty well

The only downside is you will occasionally drop it and it will shatter into a million tiny pieces.