Inspiring and compassionate trendsetter Stella McCartney has stocked shelves around the world with her modern, feminine designs for H&M, Adidas, and her own namesake line. Her designs keep the most famous movie stars on best-dressed lists (hello, Charlize, Penélope, and Kate!), but best of all, Stella and her award-winning collections are proudly free of leather, fur, and other skins.

Stella’s already revealed the horrors of fur, and now she wants you to learn the facts about leather’s extreme cruelty, environmental destruction, and human health costs and pledge never to wear dead animals’ skins again!

Watch Stella’s exposé of the global leather industry to find out who your leather bag, belt, or shoe once was:

The leather industry is a global killer. Purchasing the skins of cows raised in the U.S. likely paid for the horrors of factory farming, including castration, branding, tail-docking, and dehorning—all without any painkillers. Leather sourced from developing countries such as India and China may have caused untold suffering—such as the dismemberment of cows while they were still conscious—since animal welfare laws there are either non-existent or not enforced. Tanning, the process of turning skin into leather, requires massive amounts of energy and dangerous chemicals, including formaldehyde and coal-tar derivatives, which can end up in nearby water supplies and soil. These toxic chemicals pose a deadly risk for those who work at the tanneries and for humans and animals who live nearby. Learn more about the leather industry’s victims around the world:

Leave a comment telling us why you would never wear leather. We want to hear your voice!