The Nike Shox R4 sneakers replicate the original design with futuristic lines and performance-like cushioning. The synthetic and textile upper is soft and durable. Nike Shox technology features resilient, flexible columns that compress and regain shape for outstanding cushioning. The modified, circular waffle outsole offers great traction. Laser perforations throughout provide ventilation. These sneakers feature a foam midsole, a rubber outsole and a lace up fastening.