Ninja - Sip Perfect 12-oz. Travel Mug - Tropical Blue

Is your coffee always too hot or too cold? Meet Ninja SipPerfect - the mug that controls the heat for the perfect sip. The HeatStore Core absorbs heat to bring your scalding drink to the perfect sipping temp in minutes, and redistributes heat back into your drink to keep it there for hours. No more burning your mouth on scalding coffee!