In 2018, adidas collaborated with a designer from Belgium to produce the Raf Simons x Stan Smith 'Solar Yellow' edition. This partnership resulted in a striking yellow color covering the entire leather upper and extending down to the rubber outsole, maintaining the iconic Stan Smith silhouette. Unique to this collaboration, Simons' perforated 'R' emblem replaces the usual Three-Stripes on the midpanel. Furthermore, the insole, tongue, and heel showcase a blend of both Simons' and adidas' branding, adding the final touch to this distinctive design.