I can not say enough about how much I love the Sorrento double walled glasses from Zwilling!  Every single shape from coffee mug to espresso cup to these stemless wine glasses is a treat to use!  First they absolutely look amazing and then you realize your beverage is cold or hot for the entire time you are enjoying it.  No worries about the warmth from your hand making your wine warm with these.  I also find these make a great gift...so unexpected but then they turn into a favorite.