Adidas x Kanye West — The Yeezy Implosion

This partnership imploded more catastrophically than any other collaboration on this list, destroying $1.3 billion in Adidas inventory after Ye’s antisemitic remarks. The brand was forced to write off the entire Yeezy line, resulting in a net loss of €600 million in 2023 alone. No other collaboration here caused a financial disaster of this scale—outperforming every other entry in sheer monetary damage. Despite being the most commercially successful celebrity collaboration in fashion history, the ethical fallout left Adidas with unsellable stock and a deeply stained reputation.