The adidas Yeezy Foam Runner 'MX Sand Grey' updates the flexible clog-like silhouette with a neutral blend of colors. The one-piece foam upper is finished in a refined tan hue with swirling hits of grey and dark beige throughout the side panels. heel. and outsole. featuring a wavy traction pattern for enhanced grip. A series of ventilation ports in varying sizes and shapes offer breathable comfort. while the sculpted heel is designed to cradle the back of the foot.