The base material is made of high-quality domestic steerhide, tanned with white tannin to create a plain leather. In addition, several types of vegetable tannins, including mimosa, are combined with oil and re-tanned, resulting in a supple texture that cannot be felt in typical steerhide. Product dyeing is then applied to this highly flexible base. Even after shrinking and dyeing, the leather wear has an extremely soft feel. In addition to the black color from dyeing, the rich oil content of the leather creates a deeply saturated black hue. In addition to the soft and light feel of the leather, the thickness of the leather is also thinner than usual, at 0.6mm. This allows for an extremely light fitting that can be worn casually, creating a relaxed silhouette.
The design is based on a swing top, designed and constructed originally, with a fit that maximizes the texture and characteristics of the adopted leather. The comfort is extremely casual, not feeling like leather wear, and features a relaxed silhouette that can be worn over various jackets, making it a coach jacket with a sense of ease. Even when worn with a loose, dropped-shoulder feel, the drape of the material allows for a natural silhouette. The brand logo patch on the back is also created using a new method, where it is made from the base material and then product-dyed.