A blend of two types of high molecular weight nylon resin made in Japan. High strength achieved through unique spinning technology. While maintaining the soft texture unique to nylon, it suppresses initial elongation and reduces power loss when hooking. It has the property of stretching moderately as it approaches its breaking limit. By using highly pure materials, high transparency is maintained and it is difficult to become cloudy. For thicker sizes (size 18 and above), which tend to become hard, we have increased flexibility by applying resin compounding and special heat treatment after molding, creating a shock leader that is strong against impact and resistant to crushing.