Precidio Design Multi Flask Hydration System 3-in-1 Revolutionary Water Bottle Drink System for All Beverage Types Revolutionary 3-in-1 System: Great for Coffee, tea and Cold drinks BPA and Phthalate Free Glass inner for Hot drinks Tough & break resistant Hydration, Office water bottle, high end water bottle, multi function, convertible, Flask, Hot and Cold, Infusion, Fruit infusion, Insulated bottle, Sports bottle, aromatherapy, essential oil drink