Material: Our coffee mugs are made of high quality stainless steel. They have a smooth mirror finish on the surface and a brushed finish on the inside. Dishwasher safe.
Double Wall Design: Elegant design and the double walled construction keeps hot things hot and cold things cold longer than ceramic cups. Drinks stay hot, outside gets warm but not hot.
Lightweight and Durable: Double-walled makes it lightweight and reasonably sturdy - will survive a drop but not being run over. Also more durable than those plastic versions.