yy is a luxury brand of Yonex. yy is a world-famous sports goods brand of YONEX. In 1946, Shanfeng established Yoneyama Company, which initially produced fishing nets and wooden drifts. In 1957, it began to transform into the production of golf, tennis and badminton products. In 1979 , the company name and trademark were changed to Yonex. The badminton rackets produced by Yonex occupy the first position in the world, and the tennis rackets are also loved by many well-known stars.