W&P Ceramic Mug with Protecting Silicone Sleeve: The within of this travel mug is easy-to-clean up ceramic, which usually helps to prevent buildup after some time, but coffee does not remain incredibly hot as long as other styles. Ember has an up-to-date version of the TravelMug 2 called the TravelMug https://jamesh417ssq4.ktwiki.com/user