Typhoon Pure 800ml Color Changing Bottle Wired

Typhoon Pure 800ml Colour Changing Bottle. Add cold water to watch the bottle change colour before your eyes! Bottle will turn green below 18degreeC, and back to white above 18 degreeC. Made from robust and strong stainless steel with a wide neck that fits ice, the Typhoon Pure range encourages regular water consumption as well as reducing your plastic waste.