Reintroduced from the archives, Nike's Shox R4 returns in a futuristic "Racer Blue" colorway. This version features a sleek synthetic upper with space-inspired ripples and laser perforations. With its four supportive heel columns and a striking blend of racer blue leather, metallic silver, and phantom accents, the R4 combines cutting-edge technology with a futuristic vibe, all while honoring the original's legacy.