We got some in Costco but it was a while ago. Hands down, the best travel mug I've ever owned. Wish I wouldn't have left it in the rental car last month...
They're found at Costco occasionally. I dunno, I'm not a huge fan of these mugs. You can put really hot liquid in them but drinking out of it is impossible. I find it stays hot then goes cold really fast but maybe I have a defective one.
I would put my coffee in their first thing in the morning (6:00 am) and still find it warm by lunch time. Cold drinks stayed cold for a long time too. You could put ice in your cup in the morning and still have a few chunks of frozen water by the afternoon.
I dropped mine and it kind of messed up the seal a little bit but outside of that, it could take a lickin' and keep on tickin'. Loved that thing. I'd buy a couple chub packs full of them if I saw them again in Costco.