The main body material is kip leather tanned with vegetable tannins and embossed with square grain. After tanning, dyes and oils are added to give the leather a natural luster, and the leather is then kneaded to create a soft texture. To finish, apply heat with an iron to distribute the impregnated oil throughout the leather, and finally, by embossing the square grain, the leather has a calm atmosphere. The attached leather used for the interior has been tested for hazardous substances (JES) according to the 13 standards of the Japan Leather Technology Association, and is tanned with vegetable tannin without using any hexavalent chromium, a substance that is harmful to the human body. We use eco-nume cow leather. The lining uses original jacquard with the master-piece logo. This series features a name plate made of the same material and has a simple design that can be used in formal occasions.