These elegant, double walled, smoke gray latte glasses were designed by Matteo Thun and mouth blown by skilled artisans. The double wall maintains the perfect temperature of your beverages: hot drinks remain hot while the exterior is cool to the touch and cold drinks stay cool longer with no messy condensation on the exterior of the glass. Durable, lightweight and with excellent break resistance, they are made of high quality borosilicate glass and are excellent for outdoor dining. Use them for hot or cold coffee, lattes, special desserts, or icy cocktails. And they are microwave, freezer and dishwasher safe.