Yarn made of regenerated polyester made from end-of-life textiles, offering the same versatility and strength as conventional materials, Through a molecular regeneration process, the end-of-life textiles are recovered and separated from any accessories such as buttons and zippers; subsequently the material is shredded and purified, separating dyes and impurities, it is reconstituted into pellets and transformed into new yarns. It is used in the production of clothing.