so i'm generally a good googler but i quite haven't hit upon the magic combo of words to produce the results i was hoping for and thought that you all might be able to help me.
i'm looking for a metal interior (exterior too is fine) vacuum mug, tumbler or what have you that is very much like this:
normally i'm not keen on starbucks drinkware but i absolutely adore the twist top design. the top layer of green twists to lower a centre circular piece and allow liquid to flow through the round gap. it is amazingly leak proof. but now if only i could find vacuum (for heat retention) and metal (for non-flavour/scent absorbing capabilities).
thoughts? i found something similar on the thermos website but was hoping for other options.