Fellow® Carter Cold Tumbler

Took this on a 3-hour drive and my iced coffee was still cold at the end, no watery dilution either. The straw lid hasn't leaked once in my bag, and it slides into my car's cup holder without wobbling.

The straw lid actually seals tight enough that I can toss this in my bag without worrying about leaks. Ice from my morning coffee was still rattling around at 3pm, which I didn't expect from a tumbler this slim.

Took this on a four-hour drive and my iced coffee was still cold at the end, no watery dilution either. The straw lid snaps on tight enough that it hasn't leaked in my bag once.