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Adidas enters uncharted territory, going all in on Kanye West

German sportswear giant Adidas is putting quite a lot of eggs in the Kanye West basket.

The company announced on Wednesday a new long-term partnership that will include brick-and-mortar Yeezy retail hubs, new designs, and most noteworthy of all, sports performance gear. The gambit comes with potential high reward, but even higher risk.

The retailer first partnered with the rapper two years ago, when West left Nike in a huff. Together, they designed a line of Yeezy Boost sneakers, using the company’s “boost” running technology in street shoes. Adidas won’t break out sales of the Yeezy line, but U.S. sales in fiscal 2015 grew 12% for Adidas brand, which includes “Originals,” the division that houses the company’s fashion lines including collaborations with West and Pharrell Williams. Adidas projects 10% to 12% sales growth this year on the strength of such product. In 2015 so far, Nike stock is down 15% and Under Armour stock is down 2%. Adidas is up 45%, and 80% in the past 12 months.

In other words, Adidas is achieving a U.S. turnaround, and while West isn’t the only reason—the re-release of the Superstar with colorways designed by Pharrell Williams, and the popularity of the NMD, a new sneaker that has nothing to do with any celebrity, have also helped—he is a major contributor. Consider that on the sneaker resale market, Adidas has gone from a 1% to a 30% share in the time it has collaborated with West. The Yeezy line “is by far the hottest shoe” on StockX, a stock market for sneakers, says CEO Josh Luber.

Since signing the Adidas deal, West has publicly trashed Nike—all the better for Adidas. After the release of the first line of Yeezys, West railed that the Swoosh “suffocated” him and Adidas gave him “oxygen.” He included in a new song last year the line, “Nike, Nike, treat employees just like slaves / Gave LeBron a billi not to walk away.” Nike executives, he told Ellen DeGeneres, had the attitude, “‘Wow, the Yeezys did really good… but we’re not going to give him a shot in something else.’”

Now Adidas is giving him a shot in something else—something far beyond footwear. The company calls its new partnership, Adidas + Kanye West, “The most significant partnership ever created between an athletic brand and a non-athlete.” That may be true. Adidas has done design partnerships in the past with musicians like Katy Perry, Pharrell Williams, and Pusha T, and with fashion icons like Stella McCartney and Yohji Yamamoto, but never this extensive. The new line will create, “footwear, apparel and accessories for all genders across street and sport.”