Doesn't it look like it's paper ????
It's interesting what you can find online. I found this on Amazon.com. I bought two of them, one for me and the other for my friend Nancy that goes on our great adventures. They aren't paper as the container says, it's made out of "Porcelain", so i'll have to be careful not to drop it, or it will break.
It might take a tall or a grande from starbucks not sure. I drink tea, so a Chai or Earl Grey will work.