How Stella McCartney is Building Sustainable Supply Chains

Stella McCartney is pushing the boundaries of material innovation within its supply chain, debuting a collection at Paris Fashion Week that included denim capable of capturing air pollution.

The SS26 show, described by Stella McCartney as being crafted from 98% sustainable and 100% cruelty-free materials, signals a deeper integration of advanced technologies into fashion production and sourcing.

A key innovation is the use of denim treated with PURE.TECH, a technology that can be added to fabrics to remove carbon dioxide, volatile organic compounds (VOCs) and nitrogen oxides (NOx) from the air.

This is achieved through photocatalysis and catalysis processes that absorb pollutants and convert them into safe inert particles such as carbonites.

According to PURE.TECH, the technology can be applied to surfaces through padding foulard and coating or incorporated directly into materials. The company states that it can capture more than 2,000 ppm of CO₂ in 10 hours.

Carbon capture and textile manufacturing

Integrating this technology into the supply chain involves treating fabrics so that as air passes over the material, pollutants are absorbed and later released as harmless byproducts through friction.

This is not Stella McCartney’s first venture into air-purifying materials, demonstrating a consistent strategy of leveraging its products as tools for environmental improvement. Aldo Sollazzo CEO of PURE.TECH explained the journey of this technology.

“When we first began exploring advanced textiles through the competition Reshape nearly a decade ago the aim was to integrate design material technology and advanced manufacturing into the industry” Aldo says on LinkedIn.

“We believed in design not just as a matter of aesthetics but as a tool for reshaping material intent environmental awareness and technology integration.

"Seeing PURE.TECH woven into Stella McCartney’s beautiful garments is a dream realised and a step toward a reshaped industry led by innovation and sustainability.”

Sourcing novel vegan materials

Alongside the carbon-capture denim, the collection introduced FEVVERS a plant-based alternative to feathers.

While the exact composition of this material is still in development, its inclusion in a major runway show highlights a commitment to sourcing and scaling novel vegan materials.

This move away from animal products presents a major supply chain challenge - one that requires investment in and validation of new technologies.

James West Co-Founder of FEVVERS commented on the material’s debut. “Somehow we’ve found ourselves at Paris Fashion Week watching garments made with FEVVERS walk the runway at the Centre Pompidou in Stella McCartney’s SS26 show.

"To say that’s surreal doesn’t come close. The fact that someone of Stella’s standing has endorsed what we’re doing at this stage is epic."

Stella McCartney told FEVVERS “The innovation is just insanely beautiful and we have created some of the most striking couture pieces I have ever seen. It’s not only the world’s first plant-based feather alternative but it’s also proof that brands that continue to use feathers are choosing cruelty over creativity.”

Circularity in the supply chain

The brand's focus on sustainability extends throughout its supply chain strategy. The SS26 show featured denim waistbands upcycled into jeans, shoes, bags and a dress, demonstrating a practical approach to circular design.

This builds on a history of commitments to reducing waste and using recycled materials.

Since 2016 the brand has exclusively used recycled cashmere which it states has reduced its environmental impact from the fibre by 92%.

It also uses ECONYL regenerated nylon sourced from waste fabrics and fishing nets and has lined its handbags with fabric made from recycled water bottles since 2012.

In its Winter 2024 collection, Stella McCartney previously introduced tote bags with an Airlite finish a coating that breaks down pollutants bacteria and moulds, reinforcing the brand’s ongoing exploration of functional sustainable technologies.

These long-standing practices show a mature strategy for embedding circularity into its sourcing and manufacturing processes.