A well made mug with tight seals and a good one-hand
button press to release beverages for drinking and
to seal up the cup in order to avoid spillage.
I’ve used this for both tea and coffee, both keeping hot
(not warm) for just two hours that is the longest I’ve gone.

I’ve filled this with water and tested spillage. It doesn’t leak.

There is a good rubber grip around the center of the
mug and no difficulties with heat on the outer skin.
Overall an excellent item, which comes well packed and makes
an ideal gift.