Two layers of lightweight borosilicate glass are mouthblown together to create a unique glass-in-glass effect. The two-layer design creates a dramatic optical illusion and will also keep your coffee hot longer.
This Coffee On The Go cup has a vacuum zone between the two walls that allow thermal insulation and prevents condensation on the outer surface and the temperature of the hot liquid is maintained longer than that of other materials.
The doublewalled insulated Duetto espresso mug set will have you enjoying every cup of coffee. The doublewall construction creates a thermal barrier to keep in heat keeping your coffee hot for a longer period of time.
These adorable and stylish cups can be used for cold or warm beverages thanks to a doublewall of mouth blown borosilicate glass that helps keep cold drinks cold and hot drinks hot for longer periods of time. The perfect gift!