Kubek Trek

This 50 oz tumbler easily gets me through a full workday without needing to refill, and the double wall insulation keeps my iced coffee cold from morning till evening. The straw lid seals tight enough to toss in my bag without worrying about leaks.

The straw lid snaps on tight enough that I can toss it in my bag without worrying, though I still wipe the rim before sipping since it’s not fully sealed. It keeps my iced coffee cold through a whole work shift, which is exactly why I grabbed the 50oz size.

I’ve been using this tumbler for a week now, and the double wall insulation really delivers—my coffee stayed warm for over five hours. The leak-resistant straw lid is a nice touch, though I wish it were a bit easier to snap on.