Ninja Sip Perfect 354ml Insulated Stainless Steel Water Bottle - Leakproof Travel Mug for Hot & Cold Drinks, Gym, Hiking & Office Use

Is your coffee always too hot or too cold? Meet Ninja Sip Perfect™ — the insulated travel bottle 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!