The Yzy Foam Runner “Onyx” is a monochromatic grey colorway of Kanye West’s progressively designed hybrid slip-on sandal and sneaker that was released in June 2022. Fans who attended the listening party to Kanye’s “DONDA 2” studio album in February 2022 were given a chance to purchase the shoe ahead of its global release. The design features an all-grey molded one-piece body constructed from EVA foam and harvested algae. The Yzy Foam Runner’s multiple perforations provide constant airflow to the wearer’s foot.