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Took this on a road trip and the double-wall insulation did exactly what it promised—ice was still clinking around eight hours later. The outside never once got that annoying sweaty condensation, even in the cup holder on a hot day, and the straw lid stayed put in my bag without a drop leaking. Soli

My iced coffee stayed cold for a full workday with zero condensation on the outside of the tumbler, so my desk didn't end up with a wet ring. The straw lid snaps on securely enough that I can toss it in my bag without worrying about leaks, and the stainless steel feels really solid in hand.

I was skeptical about the whole sweat-free thing, but this tumbler really holds up—no water rings on my desk even with iced coffee in it all morning. The straw lid snaps on securely enough that I tossed it in my bag without a single leak.