Thank you for visiting! Welcome to the official online store of ERGOSTAR（エルゴスター）, a sports sock brand. ERGOSTAR is a private brand that originates from our own factory. Our product planning, development, and production are all carried out in our own factory located in Japan. As a professional sports sock factory, we have gained recognition from renowned sports brands both domestically and internationally. Over the years, we have taken on this responsibility and firmly believe in our ability to create valuable products. Our mission is to manufacture the best socks that provide maximum support for your feet, enabling you to fully enjoy the fun of sports.