One-piece eco-leather sneakers made in an environmentally friendly manner. It returns to the soil when it is disposed of, meets strict standards so that it is harmless even if an infant accidentally puts it in the mouth, and the raw hide itself is made from by-products of the beef we eat in Japan. The design is a one-piece sneaker with no seams other than the heel. It is a design that requires a high level of skill of the creator, which is formed by relying on the elongation and resilience of a piece of leather. The brand's desire to "protect the environment and shine light on craftsmanship" is a sneaker that appears on the shoe.