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Partnering with The Hong Kong Polytechnic University (PolyU), HKRITA has developed an environmentally-friendly yarn structure-based technology to improve moisture wicking, and fast-drying functionalities, good dimensional stability and strength without using chemical additives. This technology can overcome the drawbacks of both synthetic and natural fibres. By deploying physical-based coaxial and counter-rotating yarn wrapping technology, it improves moisture management effects to reduce negative impacts caused by exposure to chemical pollutants, with no extra chemicals. In addition, this technology encourages the use of natural fibres in a proportion greater than 80% and decreases the utilisation of chemical-based synthetic or manmade fibres. It can be directly applied to the secondary upcycling of stock yarns, giving the yarn a “second life”.