The Thermos 18 oz. Tritan Hydration Bottle with Straw makes it easy to stay hydrated throughout the day. This bottle is made from BPA-free, impact-resistant Eastman tritan copolyester that is durable, reusable, and built to last. The leak-proof lid has an integrated carrying loop and flip-up drinking straw. Ideal for water, iced tea, juices and sports drinks.