Vinglacé Stainless Steel Stemless Wine Glass- Insulated Wine Tumbler with Glass Insert and Sip Lid, 10 oz, Copper

Excellent glass and excellent production quality, and the whole "it's insulated but you just remove the washable glass liner" is an excellent and far less fragile construction than the double-walled glasses, though those are very nice looking.

My only real surprise is how heavy the metal portion is. I suspect it's intentionally weighted. It's not a bad thing, just a bit odd - it's nicely balanced and feels "right", and in some ways it gives me more hope that it'd survive a small tumble. It's definitely sturdy enough to survive bumps without denting.
All in all: excellent concept, excellent construction quality, I wish I found these sooner. I'll definitely be buying at least one more, maybe several.

And she loves it!! She’s a big wine drinker and doesn’t like wine out of a tumbler but loves the idea of a lid. She said the wine tastes just like she’s drinking it from a glass. She’s very happy with it!

The inside is actually glass! It does come apart so you can wash all the pieces separately. Keeps beverages hot or cold. Great find!

Love this cup. Just what I needed to keep my coffee warm in the morning. I always hated regular travel mugs because they changed the taste of coffee. Not this one thanks to the glass insert.
Yesterday I used it for my wine for the first time and it kept cold, didn’t transfer heat from my hand to my wine and the wine tasted as if I was drinking it from a regular wine glass.
The only complain I would have is that the glass insert is very thin and seems very delicate. You have to be very careful with it. I hope it withstands daily use since I remove it to clean my cup properly.