Treat your table to a fresh new look with our eye-catching set of Pavina double wall glasses. These stylish tumblers make every drink look like a work of art, as the innovative double wall design has a floating effect on your favorite beverage. But these award-winning tumblers aren’t just a pretty face; they’re really clever too! Individually mouth-blown from heat-resistant borosilicate glass, our double wall glasses have a thermal quality that keeps hot drinks hot and cold drinks cold. There’s a silicone vent at the base of the glass that equalizes the air pressure between the two glass layers when hot or cold liquids are added. Dishwasher, microwave and oven safe (up to 350ºF/176ºC).