... sizeSMLXL2XL3XL men's sizeSMLXL2XL3XL4XL About us Flex Pro U.K. Group was established in 1988, integrating research and development, production ... Asian financial center, Hong Kong. Flex Pro U.K. Group has authorized Guangzhou Jianhong Sports Goods Co., Ltd as the ... Canada, Korea, Singapore, Thailand, Malaysia, Indonesia, and Vietnam. Brand covers a variety of types of high, medium and low-grade tennis ...