Nike’s Chemical Recycling Ambitions Face Reality Check Amid Fashion Waste Crisis
While Nike claims a sustainable milestone with 100 per cent textile waste uniforms, researchers and regulators highlight contamination issues, infrastructure gaps, and the industry’s continued reliance on fossil-fuel-based polyester.
Nike has produced World Cup uniforms for 16 teams using advanced chemical recycling of textile waste, a move the activewear giant describes as a milestone for sustainable fashion. The company signed deals with Swedish firm Syre and US-based Loop Industries to create elite performance apparel from 100 per cent textile waste. However, experts and researchers argue the technology is not scalable for post-consumer clothing due to contamination issues and a lack of infrastructure. The method is more suited to industrial scraps, and production volumes are unlikely to offset the industry's massive reliance on fossil-fuel-based polyester.
The fashion industry produces over 100 billion articles of clothing annually, generating up to 10 per cent of global greenhouse gas emissions. Nearly 70 per cent of clothes are made from oil-derived fabrics, primarily polyester. Previous recycled polyester strategies relied heavily on turning discarded plastic bottles into new polyester, a practice now facing regulatory scrutiny and lawsuits. Chemical recycling uses solvents to dissolve fibres into base chemical units, theoretically allowing for infinite recycling without quality loss, but significant constraints remain.
Veena Singla, an environmental health researcher at UC San Francisco, noted that while chemical recycling is technically possible, it is unlikely to be scalable for post-consumer waste due to contamination from blends, dyes, and coatings. Diana Ferreira, a textile researcher at the University of Minho, stated that the technology works best with clean, well-sorted industrial scrap fabric rather than used garments, which often contain mixed fibres and toxic chemicals.
Dionisios Vlachos, a professor of chemical engineering at the University of Delaware, described Syre’s production targets as "too aggressive." Nusa Urbancic, CEO of the Changing Markets Foundation, argued that chemical recycling may serve as an excuse to maintain high production levels of plastic-based garments rather than reducing overall consumption. She advocates for a shift away from polyester altogether, citing concerns over microfibres and hazardous chemicals.
Loop Industries is currently under SEC investigation and has settled a class-action lawsuit regarding the misrepresentation of its technology. Syre has not clarified how its planned "gigascale" factory in Vietnam will process consumer clothes, given Vietnam’s ban on used apparel imports. The industry is projected to manufacture 169 million metric tons of polyester annually by the early 2030s, a volume that chemically recycled fabric is unlikely to match.
This story was originally published by Grist and is reproduced here as part of the Climate Desk collaboration.
