This pair of medium-sized glasses has a double wall of borosilicate glass as well as a banding of silicone for good grip. The glasses keep hot drinks warm and cool drinks chilled. They are condensation-free so there will be no mopping up of wet marks. Each of these Bodum glasses can hold up to 0.2L, they are a great way to serve ice cream, too. The Bodum double walled glasses are dishwasher safe.