34 oz. Hydration Tumbler with a double wall, graduated measure lines, a flexible straw, recommended hand wash, BPA-free. This large tumbler is perfect for staying hydrated throughout the day, whether at the gym, office, or during outdoor activities. The graduated measure lines allow you to track your intake, making it easier to meet your hydration goals. Lightweight and easy to carry, this tumbler is a practical choice for anyone looking to maintain their health.