Great double glasses! Very well made and are great in the hand. Most importantly: The filled beverage is very warm while you can take the glass in your hand, since the outer layer of glass remains cool. I love it. Also suitable for cold beverages.
Wonderful is also the appearance of espresso - the drink is floating in the glass ... just wonderful. For dishwasher strength I can not say anything because I have always ausspülte the glasses by hand.