Brett
Premium
- 8,632
- Oklahoma
I thought they were to keep my hand from getting cold. My drinks don't sit around long enough to risk warming up anyway.
Heat exchange works both ways, right? If your cold drink is insulated to prevent your hand from getting cold, that insulation also prevents your body heat from warming the drink.
What @TexRex said. Some I drink quickly and some take longer. The Yeti one works better either way.