Purist WaterGate Bottle. Has an internal coating of amorphous silicon dioxide. Essentially, this forms a glassy coating that provides a completely natural and completely inert solution to the problem of your drinks contaminating the bottle or leaving a lingering aftertaste. This coating also protects your fresh water from tasting plastic on very hot days.
* Special coated plastic will protect the flask from mold and unpleasant odors.
* Easy to use hands-free valve.
* The wide neck of the bottle is convenient for pouring ice cubes or isotonic drink into it. 100% tight.
* The self-closing Heart Valve allows for greater fluid flow. 100% tight, even in open position.
* Rubber-coated lid for greater grip.
* Soft LDPE plastic is easily deformed.
* A transparent strip on the flask that will help you understand the remaining volume of liquid.
* The plastic is BPA free. Manufactured using CPSC approved insoluble inks.