With the pop of a button, the chug spout opens for convenient on-the-go one-handed drinking. The fast-flow wide spout is perfect for chugging when you need to hydrate in a hurry. When you’re finished drinking, simply click the lid back into place to fully close and to protect against leaks, dirt and grime. The contigo autopop water bottle is leak-proof and has a button lock to prevent accidental spilling. This 100% bpa-free water bottle also has a convenient carry handle for easy transport and a protective lid cover to keep out dirt and grime. Powered by autopop technology that provides on-the-go leak-proof confidence in the closed position one-handed operation safe drinking protective spout cover to keep out dirt and grime contigo tritan water bottles and lids are top-rack dishwasher safe for a quick, easy clean button lock for added security on the go folding handle for easy storage bpa-free.