THERMOS Vacuum Insulated Mug with Lid, 15.9 fl oz (450 ml), Dark Gray JDG-452C DGY

Fantastic mug that keeps heat in for a long time. Just a heads up that while it's a large mug in Japan, but is actually a regular-sized mug in Australia. They just make things smaller (and cuter) over there.

This is my third thermal mug by this brand. It’s not too heavy and easy to wash. Love it

Keeps my coffee hot for well over and hour. Seems an extremely well made product

オフィスでお茶やコーヒーを飲むときに使用。お茶を入れたのを忘れて20分くらい。フタを開けるとまだ熱々。蓋の裏に水滴がつくので、それがDeskにこぼれないように注意は必要ですが。掃除もしやすいし。やすいから一つ持っていて損はない。

蓋をすることで保温はそれなりに効くんですが、蓋裏に熱々の水滴が着いて、蓋を取った時に垂れます。