“I love everything about my new mug. Its red color, size and quality. I tested it on my international trip. During my 3-week trip, I carried it either in my shoulder bag or in my backpack. It was seal proof. On my return flight, i left it in my backpack which I placed in an overhead bin, and it didn't leak. I would buy it again as a gift for my sister. She loved it too. The only issue is the high shipping cost. I wish it wasn't $10.”