Title: So Impressed!
Review: I put coffee in this mug around 8 am EST and it is now a quarter to 12 EST and my coffee is STILL warm/hot. This mug is genius. I highly recommend this mug. I also really appreciate how tight the lid is. I commute via public transit to work etc and I am always concerned about spilling but this locks everything in super tight and I've never had any problems with spilling.
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