Spirit Wine Tumbler

This tumbler actually keeps my cold brew iced for a full workday, the double wall insulation really does the job. The copper coating on the outside gives it a nice, subtle shine too.

Mornings are way better now that my coffee stays piping hot through a whole work session, and the copper coating inside really seems to hold the temperature steady. The outside doesn't even feel warm to the touch, which is exactly what I wanted.

This tumbler keeps my iced coffee cold for hours without any condensation on the outside. The double-wall vacuum insulation really does the job, and the copper layer seems to make a difference. I’m honestly impressed with how long it stays cold – way better than my old glass cup.