[Safe and BPA-free] Made of Tritan without BPA, safe and healthy. Compared with other similar water bottles with straws, this bite valve has a flat and wide design, which makes it easier and more free to drink. It is very suitable for daily work, exercise and fitness, outdoor entertainment, cycling, camping and walking. [Motivational Time Marker Reminder] Sports water bottles with time markers and volume scales are very suitable for measuring your daily water consumption. It can remind you to stay hydrated and drink enough water throughout the day. In addition, the sports water bottle is suitable for any fitness goal, including weight loss, appetite control, and overall health. Help you develop a healthier and more disciplined lifestyle. [Large capacity & portable] The 27oz water bottles with straw insulated can replenish the water needed by the human body at any time. It is easy to hold and easy to hang on a backpack or put it on a bicycle. Carabiner and handle ring c