Pantone Hip Flask 8401 Silver. Add a splash of colour to your favourite drinks! The Pantone Hip Flask is a classically elegant way to add a splash of colour to your favorite drinks. Customise your libations with fabulous Pantone Metallic Colours like bronze, silver, and gold, or try a bold yellow or red. The choices are yours. It’s the perfect gift item, but only just because we all want one for ourselves!