ASOS will no longer sell silk, cashmere and mohair products due to animal welfare concerns.
The online retailer joins a wave of international retailers who have dropped mohair.
"We've updated our animal welfare policy," ASOS told SBS in a statement, saying they will "no longer be stocking" products containing silk, feathers and down, bone, teeth or shell (including mother-of-pearl), cashmere and mohair.”
This also means that third party products on the website will have to follow guidelines.
The brand already banned fur and products made from endangered species.
Emma Hurst, media officer at PETA, said the news was welcomed.
“We absolutely applaud them in leading the charge for compassion.”
She said this was a really big change for the fashion industry.
She synthetic fabrics and fibers were virtually indistinguishable from animal-derived products.