Van der Wyck and Wessely turned their attention to a much, much older material. They met regenerative sheep farmers who "wanted to bring about radical change" to their industry, Wessely says. Impressed with farmers' convictions and the technical and environmental benefits they claimed their produce offered, they landed on their raw material of choice: regenerative wool. "The real answer came in the form of an ancient material, albeit sourced and treated in a pioneering way," says Wessely.
https://www.bbc.com/future/article/20230413-can-regenerative-wool-make-fashion-more-sustainable