The Nike Shox R4 replicates the original design with futuristic design lines and performance-like cushioning. The Nike Shox columns in the heel distribute weight to maximize comfort while providing a bold look. 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 traction. Laser perforations throughout provide ventilation. These are athletic sneakers with a foam midsole and a rubber outsole.