The iconic piece of clothing is now the most expensive sweater ever auctioned,The Guardianreports.

Cobain’s widow,Courtney Love, reportedly gave the clothing item to close family friend Jackie Farry after his death. Then, in November 2015, it was auctioned off to a businessman for $137,500. He reportedly kept it stored in “acid-free tissue in a safe,” according toRolling Stone.

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Kurt Cobain

Juliens Auctions

Kurt Cobain

Sold for the second time, the special piece remains stained and unwashed. It’s a blend of acrylic, mohair and Lycra, and features two exterior pockets, a burn hole and discoloration near the pockets, according to theJulien’s Auctions listing.

Courtney Love and Kurt Cobain.Terry McGinnis/WireImage

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“Rock & roll memorabilia has become an investment,” Darren Julien of Julien’s Auctions toldRolling Stoneearlier this month. “It’s not just a collector’s market — it’s an investor’s market. The person that bought the sweater in 2015 bought it as an investment. Now, because we’ve been getting record prices for Kurt Cobain, people are starting to sell it. We anticipate that it will sell for more than double. I call it the new fine art market. People are investing more.”

“It’s very important that we don’t wash it,” Julien added. “The stains are still there. There’s even cigarette burns that you can see on the sweater.”

source: people.com