Come and see our amazing products. We use Tritan high-performance transparent materials developed in the US, 100% BPA FREE and TOXIN FREE. To ensure that the water bottle WON'T produce harmful chemicals or strange plastic taste. After ensuring safety, we hope to do something to make you healthier. So we added capacity and time markers to this water bottle to help you know whether you drink enough water every day. Especially when you are in fitness, losing weight or working in office, it will be a powerful partner.The flip top lid is designed with carry a safety lock, making it leak-proof and dust-proof, so that you can safely carry it in your backpack. After opening the safety lock, only need to press the button with one hand to open the lid.The unique wide mouth design ensures that this water jug has a fast water flow. Pls confirm further with us if any query about packing info, inventory status and time schedule.