The adidas Yeezy Foam Runner “MX Brown/Blue” is a colorway of the futuristic slip-on sandal/sneaker design with an interesting combination of colors. The Yeezy Foam Runner in “MX Brown/Blue” has a marbled blend of grey, dark blue, and brown on its lightweight, EVA foam and harvested algae body. The design’s multiple perforations provide ventilation and give the shoe a unique appearance.