High quality vacuum insulation keeps beverages hot or cold for hoursLid conveniently turns into a cupOne-touch button for easy pour operationEasy-to-clean and fill wide opening (1-5/8Inchs wide)Double layer nonstick coated interior enhances durability and provides greater protection of the stainless steel against salt-containing beverages like sports drinksMade of BPA-free plastic and 18/8 stainless steelA vacuum bottle also known as a thermos bottle or vacuum flask is a type of insulated bottle or flask that uses vacuum between its walls to keep hot liquids hot and cold liquids cold. These premium vacuum insulated water bottles which are also thermal water bottles exemplifies ease affluence and style using its advanced technologies.