Auction house Sotheby’s announced that it sold the Nike Air Yeezy 1 “Grammy” sample for $1.8 million to sneaker investing platform Rares.

This unreleased pair of the Nike Air Yeezy 1 was created exclusively for West and worn by him during a performance at the 50th Annual Grammy Music Awards in 2008, making it the first time the sneakers were revealed to the public. The shoe features a black perforated leather upper that’s paired with a midfoot strap along with a pink “Y” lace lock.

“We are thrilled to work with Sotheby’s on this acquisition,” says Gerome Sapp, CEO and Co-Founder of RARES. “Our goal in purchasing such an iconic shoe—and a piece of history—is to increase accessibility and empower the communities that birthed sneaker culture with the tools to gain financial freedom through Rares. We look forward to working with Sotheby’s to continue to identify rare finds that will help elevate, preserve and uphold sneaker culture.”