I liked the double-walled glass version very much. It did keep the brew hot
for quite a time.
I got it in Beijing. After I broke it (dropped on the hard floor) I wanted a
replacement, but all my attempts to buy it in the US failed.

Also you
can't but them at a street corner, I bought mine in a gift shop inside
Beijing International Hotel (the one with rotating restaurant on the top).
It was 80 Yuan. They also have a hologram on the top that is dark normally
and "develops" into an image of a deer when the liquid is hot. Nice since
you can't tell by just touching the outer wall. Kitschy, though.. (as almost
everything there)
Sasha.
"Eric" > wrote in message
ups.com...
>I forgot to ask you, Sasha ... where did you get your glass ones?
>
> Thanks,
> Eric
>