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Took this tumbler on a road trip and my coffee stayed hot for over four hours. The lid snaps on tight with zero leaks, which is a huge plus for my morning commute.

Ice stayed solid in this thing from morning coffee refill all the way to dinner, which I honestly didn't expect from a tumbler this size. The lid seals tight enough that I can toss it in my bag without worrying.

Used this tumbler every day for two weeks now and it really does hold temperature well — my coffee was still warm on my desk five hours after pouring it. The insulated build feels solid without being heavy.