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Brought this to a weekend camping trip and my coffee was still hot the next morning, which honestly surprised me. The insulation is no joke and the lid seals tight enough that it didn't leak in my bag.

I've been using this tumbler daily for a week and the insulation is seriously impressive—my coffee stayed hot for over four hours. The lid seals tight so it fits perfectly in my car cup holder with no spills.

Took this on a hike and my water was still cold six hours later, which I honestly didn't expect from something this size. The lid seals tight enough that it didn't leak a drop in my backpack either.