This ain't your average tin cup. In fact, it's not tin at all. You won't burn your hand on it after you've poured in the morning coffee and it won't sweat on you once the ice and liquid ingredients go in later in the day.
It's the only double-walled, insulated cup you need. The only thing we ask? Please rinse it between uses. Why? Well, you wouldn't pour coffee on a mule, why pour a mule in your coffee?