Fashion for Good Launches Mass Balance Demonstrator to Fast‑Track Biosynthetics in Apparel
Fashion for Good has launched the Mass Balance Demonstrator, a new cross‑industry initiative aimed at scaling the use of mass balance attribution (MBA) to bring biomass‑attributed PET into mainstream textile production. The project responds to a growing urgency across the apparel sector: while preferred and next‑generation materials offer promising decarbonisation pathways, biosynthetics remain a small fraction of projected fibre use by 2030, largely due to limited commercial‑scale infrastructure and high production costs.
MBA offers a practical, near‑term solution. Borrowed from sectors such as renewable energy and sustainable forestry, the model allows renewable and fossil feedstocks to be processed together while maintaining a verified accounting system that proportionally allocates renewable input to outputs. This enables manufacturers to introduce renewable feedstocks—such as agricultural residues or used cooking oil—into existing chemical systems without requiring new dedicated biobased facilities.
The initiative brings together a broad consortium of leaders, including BESTSELLER, Beyond Yoga (Levi Strauss & Co.), ON, Paradise Textiles, ERM, Indorama Ventures, ISCC, UPM Biochemicals, and Textile Exchange. Their collaboration aims to demonstrate what is technically and commercially feasible today while generating insights that can guide wider industry adoption.
The Mass Balance Demonstrator is structured around four core objectives: producing biomass‑attributed PET resin and yarns; developing a cradle‑to‑grave GHG emissions model to quantify climate impact; creating a practical blueprint for industry scale‑up; and sharing insights with climate frameworks and standard‑setting bodies to strengthen credible guidance on MBA. Together, these efforts aim to accelerate the sector’s transition toward lower‑carbon synthetics and more resilient supply chains.
