A. Large capacity of 3.78 liters: This sturdy half - gallon water bottle can hold 3.78 liters of water. When doing high - intensity training outdoors or indoors, it can meet the daily water intake and fitness hydration needs of an adult. B. Record water intake: The time scale markings on the side of this water bottle can help record daily water intake, ensuring to stay well - hydrated throughout the day to achieve health and fitness goals. C. Environmentally friendly material: This durable water bottle is made of food - grade PETG resin. It is BPA - free, odorless, and can adapt to a busy lifestyle. D. Practical design: It uses a traditional screw - thread and silicone gasket structure. The leak - proof cap can tightly seal the water bottle, and the half - gallon water bottle will not retain the smell of powder or juice. E. Tips for use and maintenance: - It is not recommended to fill it with hot water above 120°F. - It is not advisable to put it in the dishwasher for cleaning. - It is not suggested to put it in the freezer. - It can be cleaned with baking soda and vinegar. - It is not recommended to leave the water bottle in the car on hot days. - It is not advisable to drop the water bottle.