News & Events

DuPont^TM Sorona^® and Sateri’s EcoCosy^® have together developed a new fabric called StretchCosy^TM. The fabric uses a blend of Sorona^®, a partially plant-based fibre, and Sateri’s ultra-comfortable and near weightless EcoCosy® fibres to achieve a soft material that is highly stretchable, shape-retaining and, most importantly, sustainably sourced.

StretchCosy^TM combines the mechanical stretch of Sorona^® stretch fibres, which gives it excellent stretch and long-lasting, consistent recovery, with the soft, cotton-like breathability and smooth silk-like texture of EcoCosy^® for an unparalleled fabric that is high-performing and well-suited for fashion and sportswear.

Created in 2019, StretchCosy^TM is a fabric breakthrough that made it possible for natural plant-based fibres to be more extensively used in various applications, e.g. t-shirts, shirting, bottoms, jackets, dresses, hoodies and underwear. Previously, cellulosic fibres were rarely found in sportswear, due to concerns such as pilling. The combination of Sorona^® and EcoCosy^® in StretchCosy^TM has eliminated this concern, hinting at the future of activewear where performance combined with sustainability will be the norm.

Tom Liu, Sateri’s Vice President for Commercial, said, “StretchCosy^TM marries the best of Sorona^® and EcoCosy^®. In addition to their complementary properties, both fibres are derived from plant-based materials. Sorona^® is partially made using renewable plant-based ingredients, while EcoCosy^® fibres come from certified and sustainable wood sources. The end product, StretchCosy^TM fabric, is not only a natural and comfortable fabric, but also sustainable.”

The global sports apparel market is forecasted to reach around USD 208 billion in 2025¹ . Combined with the rise of the athleisure fashion movement and an increase of stay-at-home workouts due to the COVID-19 pandemic, demand for clothing that is high performing yet comfortable is expected to continue growing. StretchCosy^TM embodies these characteristics, a win-win situation for sustainable clothing.

Renee Henze, Sorona^® Global Marketing Director, said, “It is encouraging to see members of the same industry come together to collaborate for the better good. Our partnership with Sateri in creating StretchCosy^TM combines innovation from both fiber offerings into a superior product that we believe not only will exceed consumer expectations, but is kinder to the environment.”

StretchCosy^TM has been well-received by fabric manufacturers and various brands, including Shui Bing Yue (水冰月), In & On, and famous women’s fashion Eifini (伊芙丽). Such feedback has prompted both companies to formalise and deepen the strategic partnership with the introduction of StretchCosy^TM, and confidently look forward to a greater success across segments in the near future.