Caribou Coffee Double-Wall Coffee Mugs (2-Pack): Enjoy a tasty cup of coffee alongside a friend or relative with this 2-pack of hand-blown mugs. The double-wall, temperature-resistant glass construction helps ensure your coffee stays hot while remaining cool to the touch.
We assumed these blown glass coffee mugs would break quickly, but we have used them every day, washing in the dishwasher, and they have stood up beautifully. The hollow/thermal design keeps coffee hot and feels good in the hand. We bought a different brand around the same time and both mugs broke within the first week.