By making the thickness of the 200g stainless steel, which is the same as that of a smartphone, as thin as possible, we have achieved an ultra-lightweight bottle weighing just 200g despite its 500ml capacity. It is light enough to be used not only as a personal bottle to bring to the office, but also for activities such as mountain climbing where you want to reduce the weight of your luggage as much as possible.

By making the stainless steel thinner, the contact area between the inner and outer bottles is reduced, reducing heat conduction and significantly improving the heat and cold insulation power. In addition, the inner wall of the vacuum part is coated with copper to prevent heat transfer that cannot be prevented in a normal vacuum state, blocking heat from escaping and further improving the heat retention effect.

The stainless steel surface has unevenness that cannot be seen with the naked eye, and dirt easily accumulates on these uneven surfaces, which can also cause odor transfer. Therefore, the inside of the bottle is electrolytically polished to a shiny surface, making it difficult for dirt to adhere and difficult for odors to transfer even when aromatic coffee or flavorful tea is poured into it.