Love this! I bought one for everyone in the family so they would quit taking mine. Everything stays cold or hot for hours, even in extreme weather.
Absolutely love this mug! Coffee stayed blistering hot for 4 hours or so. Happen to make a mixed drink in it and 12 hours later my cup still had ice cubes in it.
Keeps coffee hot for hours, especially if you pre-warm with hot water.
Love the quality and functionality.
Awesome product. Authentic and came fast!