An extravagant mix of materials and hues distinguishes the Nike Air Max 90 NRG Ridgerock, an old school runner with modern accents. The upper in a brilliant aqua mesh pairs with overlays in brown and maroon suede intersected by an abbreviated Swoosh in black leather. The eyelets and heel patch with Nike branding appear in Saturn Gold. Underfoot, a cushioning PU midsole features an exposed, Air-sole at the heel in a yellow hue.