Thermore Launches Polyester Waste Based Fibre Insulation

Thermore, launched Ecodown Fibers T2T, a free fibre insulation made from recycled polyester waste sourced from the textile supply chain. For more than 50 years, the Italy-based company has integrated environmental responsibility into its operations, focusing on recycled materials and solutions that enhance efficiency and durability. With Ecodown Fibers T2T, Thermore reinforces its commitment to sustainability by introducing an innovative fibre that transforms textile polyester waste into high-performance insulation.

Made from 100% recycled polyester, the material comprises 80% post-industrial textile waste and 20% post-consumer PET bottles. Unlike conventional downcycling processes, Ecodown Fibers T2T maintains the same high quality and performance standards as other Thermore products.

“I have personally coordinated the Thermore research group for years, and the theme of circularity and textile-to-textile has long been the subject of study by our team," says Patrizio Siniscalchi, Managing Director of Thermore. "In fact, just as we pioneered the use of recycled fibers from PET bottles over 40 years ago, in recent years we have worked on the revaluation of textile waste. Ecodown Fibers T2T is already the second generation of padding we have produced using these important resources."

Sustainability is not the only strong point of this product. Ecodown Fibers T2T stands out for its high lofting and softness, guaranteeing optimal comfort. It’s also highly versatile and can be blown into baffles, placed inside panels, or applied by hand. Its structure is engineered to stay stable over time, minimizing clumping. 

With this new product, Thermore aims to redefine responsible thermal insulation—not merely as a technical component, but as an integral part of a system where durability, performance, and resource efficiency are central to design. Ecodown Fibers T2T marks a step forward for the fashion and sports industries, offering a balanced approach to sustainability, performance, and style.

Source: Thermore