The Purist Hydroflo WaterGate bottle features an amorphous silicon dioxide coating that is infused into the inner wall of the bottle.

Essentially, this forms a glass-like finish that provides an all-natural, completely inert solution to the problem of your beverages staining the bottle or leaving a residual aftertaste.

This infusion also prevents your fresh water from tasting like plastic on very hot days, making it akin to drinking straight from a sparkling clean glass.