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.
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.
If you use a single serve coffee machine, you will want this tumbler. It is doublewall insulated to protect your hands and keep your beverage hot at the same time. It fits in most car cup holders. Once at your desk, you'll appreciate that it has a safe, non-skid base. No tipping over!