This travel mug's durable ceramic construction makes it one of our bestsellers! The "perfect" lid features three rings of silicone to ensure no leaks. The doubled lip plastic ensures a tight fit at the top and fits 1.5 inches into the cup's molded grooves for true security. The pop-top attachment provides security, insulation, and a comfortable place to sip your coffee. Holding up to 17 ounces, it is top-rack dishwasher and microwave safe. It comes packaged in a coordinating gift box, making it a great gift-ready purchase!