Testers raved about this travel mug, which not only kept coffee hot and cold for far longer than any other mug we tried but also was the easiest to use. Slim from top to bottom, it was comfortable for hands of all sizes to hold, open, and close, but because the opening is narrow, we had to aim a little more carefully when filling it. A simple push of a button popped open its lid, exposing the clean drinking spout within. Testers also loved that this leakproof mug came with an equally easy-to-use locking mechanism, which provided good insurance against accidental spills. Just a few minor durability issues: Like the other models, it dented when dropped, and it smelled of coffee even after several washes. Also worth noting: Because it’s so good at retaining heat, you may want to cool your favorite beverage to the temperature you prefer before sealing the mug or you risk a very hot surprise on your first sip.
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