Since inventing the vacuum bottle more than 100 years ago, Thermos innovations have become an essential part of American life. Whether you're packing a school lunch, going to practice or a game, on a family outing, or relaxing at home, the Thermos Funtainer bottle is the most dependable way to keep your child's beverages colder and fresher for longer. BPA free and easy to clean, Funtainer bottles have a 12-Ounce capacity and are designed to keep liquids cold for up to 12 hours. Made of durable stainless steel with TherMax vacuum insulation, this bottle features a push button lid and pop up straw