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）

I can't believe how long this thing keeps my iced coffee cold—even after a full workday, there’s still ice. The straw is a nice touch, and the lid feels sturdy and leak-free in my bag.

The flip lid actually seals tight enough that I tossed it in my bag sideways with iced coffee and nothing leaked, which is rare. The straws are a nice backup too, and the double-wall keeps things cold for a solid chunk of the day.

I've been using this tumbler daily for my iced coffee, and the double-wall insulation keeps it cold for hours without any condensation on the outside. The twist-on lid feels secure, and having two straws is a nice bonus for when one gets lost.