The Nike Air Max 90 NRG ‘Shimmer Polka’ updates the vintage running shoe with refreshed details and a premium build. A subtle polka dot print is applied to canvas paneling used on the toe box, collar and mudguard. The rest of the upper features a light tan leather overlay, translucent TPU accents and a tumbled leather Swoosh. Atop the padded tongue, a Nike Air branding is front and center on an embroidered Venn diagram graphic. The sneaker is mounted on a peach-colored polyurethane midsole, featuring visible Max Air cushioning under the heel.