Thanks! It’s Propel by Kruve out in Toronto. It’s double walled on the bottom where you hold it and the drink sits, single walled at the top where you sip. It also has internal fins to destratisfy the oils in the shot so you can just swirl instead of having to stir. Really neat design. I got them from Cafuné from Montreal:
https://cafune.ca/collections/kruve-1/products/kruve-propel-espresso-glasses