Nike Shox R4 Trainers in Black and Bright Crimson. Step into the future of classic style with the Nike Shox R4, a modern icon reborn, Originally launched in the early 2000s, this silhouette is a legend in performance and streetwear, reimagined for today’s sneakerheads. Featuring a sleek synthetic leather upper, the R4 delivers a lightweight, breathable feel with aerodynamic style lines inspired by space-age design. The Metallic Silver overlays add a premium, futuristic edge, while vibrant Bright Crimson accents ignite the look with energy and attitude.