Mugcolor brings a whole new light to the concept of double-walled mug. A unique technique in production allows for the most efficient way to keep your hands cool and drinks warm. Not only that, but it is the only one that does so while also providing a full 12oz capacity, a tiny hole in the bottom (as opposed to the large, ugly silicone plug thing you often see elsewhere -- did you know that a large hole also allows water into the inside of your mug, increasing the chances of water getting into it and the mug cracking in the microwave? -- NOT HERE!), and a manufacturing method that allows for a true double wall all the way up to the lip. Mugcolor is available in a variety of eye popping colors and is microwave and dishwasher safe.