Stella McCartney’s Paris show puts wool alternatives beside an ocean-life message

Stella McCartney presented ocean-inspired clothes at Paris Fashion Week on Wednesday, Sept. 30, and said there was no wool on her runway. The show, held in the British ambassador’s gardens in Paris, brought her concerns about fishing and animal-derived clothing materials into the same collection. Her no-wool statement applies to this runway; she says her label uses responsibly sourced wool in other collections.

Earlier NewsJaws coverage described the show’s sea-life theme. The material choices and McCartney’s account of how she sources wool add a further distinction: a runway without wool does not mean the fashion house has stopped using it altogether.

What Stella McCartney showed in Paris

“Sea life, not sea food. That’s the point I wanted to make,” McCartney told the Guardian after the show. Its invitation included a video message from oceanographer Sylvia Earle. On the catwalk, the Guardian described long-sleeved swimsuits styled as eveningwear, dolphin T-shirts and party dresses with hems recalling Hokusai waves.

The Associated Press reported dolphin graphics and wave motifs, alongside seafoam, sage, coral, blush and chocolate tones. It described fluid tailoring that carried the water theme beyond printed images. Jennifer Lopez attended the show, while Karlie Kloss and Miranda Kerr were among the models AP identified.

What her no-wool statement covers

“There is no wool on the runway this season, and I’m proud of that,” McCartney told the Guardian. The statement describes what she presented at this show. The reports available for this article do not provide a garment-by-garment fibre inventory, so her account is the basis for calling the runway wool-free.

McCartney also told the Guardian that she keeps alpacas and has to shear them. She said she did not consider humane shearing inherently wrong, but described much wool production as deeply cruel. When her label does use wool, she said, it is responsibly sourced and traceable to its origin. She said checking treatment throughout that process requires work and resources.

AP reported that the label traces its certified wool to farms. Its account of the ready-to-wear range also named recycled cotton denim, organic cotton and silk. AP said the brand characterized that range as 100% responsible. That percentage is the brand’s description, rather than an independently verified environmental measure in the report.

Where the wool alternative fits

One material McCartney has pursued is Brewed Protein, a fermented fibre developed by Japanese biotechnology company Spiber. AP reported that the label has knitted with it since 2026. It is presented as an alternative to animal-derived fibres, including wool; its appearance in the company’s earlier collections should not be taken as a garment inventory for the Sept. 30 runway.

The company’s Winter 2026 show page says Brewed Protein appeared in fisherman-inspired rib knitwear. The same page says that collection included responsibly sourced wool and certified blends, and describes its materials as 93% sustainable. Those are claims about the earlier Winter collection, whose stated fibre mix differs from McCartney’s description of the September runway.

The company says precision fermentation reduces Brewed Protein’s environmental impact and avoids the need for animal-derived fibre. The supplied company page does not independently establish those outcomes. Nor do the show reports provide a lifecycle assessment that would allow readers to compare the fibre’s environmental performance with wool.

What the show leaves open about animal welfare

Wool production raises welfare questions beyond the choice of fibre on one runway. A 2014 scientific opinion from the European Food Safety Authority assessed welfare risks associated with raising sheep for wool, meat and milk. That work provides context for McCartney’s concerns, but it does not assess the farms supplying her label or verify her account of their practices.

The Guardian connected renewed attention to wool production with the reported physical restraint of a Peta protester at a New York Fashion Week show. Its account is context for the debate around McCartney’s remarks, rather than a finding about her Paris collection. The available Paris show reports do not include a response from the person or organisation involved in that separate incident.

For this collection, the clearest distinction is between McCartney’s stated no-wool runway and the label’s continued, selective use of wool elsewhere. Its traceability and environmental claims remain attributed to McCartney and her company. The clothes and her comments show the position she chose to present in Paris; the available reports do not establish how every garment was made or measure the wider effects of the materials she promotes.