Chantal's 15 oz. Travel Mug is the perfect choice for enjoying your beverage on-the-go, in the office or in the comfort of your home. This triple-wall thermal mug consists of two stainless steel walls with a copper layer in between. The copper layer ensures beverages stay hot or cold for up to 7 hours while the vacuum insulation prevents condensation and maintains a comfortable exterior temperature. Chantal's Travel Mugs are so easy, the push-button top allows you to drink from any side of the rim and the two silicone seals will prevent spills while the push-button is closed.