A 12 Oz Ceramic Travel Mug With Lid can hold plenty of coffee for most people and will keep it hot longer than a regular cup. Having a top not only helps keep your tea or coffee hot, it also prevents spills and splashes.
The porcelain imparts no flavor on your drink, which is its strongest point. Its weakness is that it is heavy and will break if dropped. It also does not insulate as well as some other materials, but using double walls improves that considerably.
I tried to choose a good variety of tumbler designs for this list, so that everyone should be able to find one they like. Even if you don’t, clicking on any of them takes you to Amazon, where you will be shown many more designs.
I really like the 12 ounce size for coffee. It is enough space that you can add milk, if you like, but not so much that drinking it black leaves half the cup empty.