A double walled cup, will provide thermal insulation for hot and cold drink, allowing hot drinks to remain hot and cold drinks to remain cold longer than a normal cup.

Made from titanium, and the colors are also produced by controlling the thickness of the oxidized film (TiO₂) created on the surface during the anodizing process. The oxidized film from colored titanium has photocatalytic properties, in which bacteria and other organic matter are destroyed under the exposure of light. This antibacterial effect works in both sunlight and indoor fluorescent light, making colored titanium, HORIE treated titanium a hygienic choice, and for preventing the growth of odor-causing bacteria.

Close up of the double wall