Eco-friendly throughout, the mugs’ acrylic lids are hermetically sealed, with an ABS outer cap, a new-generation co-polyester Tritan™ inner cap and silicone cover to preserve liquid temperature and prevent leakage.
Features: Tourmaline Anion – Patented Far infrared and negative ion Technology. The tourmaline lining of the tumbler heightens the flavor and freshness of any beverage. The tourmaline’s charged negative ions add a pure taste, while neutralizing harsh chlorine and other impurities.