The Adidas Yeezy Foam Runner "Mineral Blue" is a May 2021 colorway of the innovative slip-on shoe designed by Kanye West and Adidas. The Yeezy Foam RNNR (Runner) debuted in Summer 2020 and is a hybrid between a traditional slip-on sandal and shoe. A combination of lightweight EVA foam and harvested algae comprises the construction of the evolutionary piece of footwear. On the "Mineral Blue," the model's one-piece molded body is cast in a swirled two-tone blue design. Release date: May 29, 2021.