This ClaudiaG double-walled, thermal porcelain cup is ideal for commuting, sporting events, and the office. The flexible silicone lid helps keep beverages hot or cold for longer and helps prevent messy spills. The two layers of the porcelain travel mug, which are separated by a hollow cavity, act not only as a perfect travel insulated coffee mug but also an effective insulator. This makes it great for any hot and cold beverages so that you won't burn your fingers. Fits almost any cup holder for on the go traveling.