Nike's Metcon 4 XD 'Whiteboard' cross-training shoe provides a convenient solution for athletes to monitor their workout progress by keeping track of reps and WOD intervals. When initially introduced, Nike promoted this model as highly durable. The shoe showcases a breathable, monochrome white upper that exudes a subdued aesthetic and is enhanced with green and blue lace aglets and heel caps. Overall, this power-packed performance shoe in the February 2019 rendition offers both functionality and style.