Tasses à espresso Barista PlusMade from hand blown borosilicate glass, the high quality of the Safdie & Co barista espresso mug makes these double walled glasses thinner, lighter, and capable of withstanding thermal shock. The double walled mugs also keep hot drinks hot without burning fingers and cold drinks cold without messy condensation. Set of 2 Material: Borosilicate glass Capacity: 80 ml