An ancient species of brown cotton revived in modern times. Originally, cotton was not white, but brown cotton. American biologist Sally Fox uses organic farming methods Brown cotton that succeeded in reviving an ancient species. By repeatedly crossing with ultra-long cotton during breeding, it has a smooth and soft finish. In addition, the green color was also born by accident. We have made such a valuable series into pile socks that are carefully and carefully knitted. On the skin side, we use Indian organic with a twisting method, It is a pair that is characterized by its unique texture and natural shades of undyed. It is weak in light fastness, and the color may be uneven depending on the production time. You can feel the warmth of organic farming. The white color of modern cotton is the result of the continuous accumulation of technologies that have been repeatedly bred to make it easier to use commercially. It is a sock that allows you to feel the history of cotton and the soft texture. 92%COTTON, 7%POLYESTER, 1%POLYURETHANE made in Japan