Trek 隨行杯 - 經典款

Finally a tumbler that actually fits in my car's cup holder without wobbling. The straw lid seals tight enough that I can toss it in my bag without worrying about spills.

Filled it with cold water before a hike and six hours later there was still ice clinking around in there. The straw lid actually seals shut too, no drips in my bag.

The tapered shape fits perfectly in my car's cup holder, and the handle makes it easy to carry. Plus the double wall insulation keeps my coffee hot for hours.