<p><b>Double Wall Design</b><br>Double wall ceramic construction design can insulates hot or cold beverages, slow down the transfer of heat to outside, better than normal single wall mug. You can easily take hot water and won't burn your fingers.</p><p><b>Microwaveable</b><br>You can put the mug in the microwave to heat the beverage (without lid and silicone bottom). Because of the double wall constrution, you have no worry about the temperature, just grip and it won't burn your fingers.</p><p><b>Built-In Coaster</b><br>At the bottom of the mug, there is a silicone boot. So soft that it can be as a coaster to protect your table or vehicle cup holders and won't slip to damage your countertops. You don't even need to buy another coaster.</p><p><b>Drip Free</b><br>Between coaster and cup there is a thin groove. It's designed to catches drips. Many coffee cups may leave coffee stains on the table after you drink. This thin groove will keep droplets in place so there’s no need to worry about coffee stains. No more a ruined table or smeared papers!</p><p><b>One-hand Operation</b><br>The slider lid is made from Polypropylene Plastic, 100% BPA-FREE. You can slide the lid to open or close with one hand. Image that when you are driving, waiting for the green light, one hand on the wheel, you can use the other hand to slide the lid and drink directly. So convenient, you don't even have to rotate the lid with two hands.</p><p><b>Premium Materail</b><br>This tumbler is made from grate porcelain clay with more than 1200 degree heats. It's very premium and durable. Hand wash is recommended, with its High density, you can even clean it in the second day and will not remain any coffee stains. Of course all the silicone parts are allowed to take out to clean.</p><p><b>On The Go</b><br>With the silicone sleeve, grip the cup is easy and comfortable. You can take it to everywhere as a travel mug, holds approximately 10oz convenient for coffee on-the-go, perfect for the commute & office