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I was skeptical about how well an 18-ounce tumbler would keep my tea hot, but after a long morning meeting it was still pleasantly warm. The slider on the plastic lid is smooth and easy to use one-handed, which is perfect for my commute.

The double-walled design actually works—my iced tea stayed cold for my entire morning commute without any condensation on the outside. The slider lid is a nice touch too, easy to open one-handed while driving.

This tumbler keeps my coffee hot for hours, way longer than I expected from a simple mug. The double-wall really works, and the slider lid makes it easy to sip without spilling.