Eyewitness video shows workers plunging knives into the throats of conscious lambs and starting to skin them while they’re still alive and moving.

This video should mean that millions of people will think twice about ever buying wool socks and sweaters again.

A gut-churning PETA video exposé reveals that life is hell for lambs and other sheep exploited for so-called “responsibly sourced” wool on so-called “sustainable” farms. A witness found workers in Argentina hacking into fully conscious lambs, starting to skin some of them while they were still alive and kicking, and otherwise mutilating, abusing, and neglecting lambs and sheep on farms in the Ovis 21 network—Patagonia’s wool supplier.

UPDATE: Update: On August 17, 2015, after hearing from more than 50,000 people like you, Patagonia announced that it was dropping Ovis 21 as a supplier, but will continue to sell products made from wool.