French press/transportation mug

You can brew your coffee or tea in the mug directly, and take it in the road! It has a double wall so it keeps your beverage hot. I got it for secret santa, and used it a few time, but I rather brew my coffe another way, and the plunger makes it not fully hermetic, so you cannot throw it in your bag (which I want to be able to do) but keep it upright. A colleague also got one though and is very happy with it.