The covered yarn with multiple special functions can meet customer's different demands. the product is mainly used in body building and shaping in outdoor sports. the products have obtained the CE certification of the european union, the FDA mark of the U.S. food and drug administration, and have reached the european standard: ISO20743, the american standard: AATCC100, and the japanese standard: JIS L 1902, the quantitative test (bacterial liquid absorption method) standard.