ボイジャー タンブラー（クリアフリップリッド＆ストロー付き）

Been using this tumbler every morning for a week now, and the double-wall vacuum insulation actually keeps my coffee hot through a full meeting. The clear flip lid is a nice touch since I can see how much is left without popping it open.

The flip lid twists on securely enough that I tossed it in my work bag with coffee and didn't spill a drop on the commute. The straw is a nice bonus, and the double-wall keeps things cold for hours, which is exactly what I needed.

I was a little skeptical about the double-wall insulation, but my iced coffee still had ice chunks after four hours in the car. The twist-on lid seals tight enough that I can toss it in my bag without leaks, and the included straw makes sipping easy. Perfect for my commute.