Trek タンブラー

I was skeptical about the lid's leak resistance, but it held up fine with coffee sloshing around in my car's cupholder. The handle makes it easy to grip even with one hand on the wheel.

The tapered shape fits perfectly in my car's cup holder without wobbling, and the handle makes it easy to grab. I also love that the outside stays completely dry—no more wet hands from condensation.

Took this on a 6-hour road trip and the tapered bottom slid right into my car's cupholder without wobbling once. The outside stayed totally dry too, no condensation ring on my console.