Nike Shox R4 blends a futuristic, aerodynamic silhouette with Nike Shox cushioning to deliver responsive heel support and reliable traction for everyday wear. Key attributes: Black | Metallic silver | Green | Leather, Synthetic | Nike Shox cushioning (heel columns) | Durable rubber outsole with tread for traction | Lace-up closure | Shox heel columns for cushioning and energy return | Futuristic, aerodynamic silhouette | Perforated leather upper with metallic panels | Swoosh logo on side | Contrasting color accents | Composition & care: Leather | Synthetic materials | Textile lining | Rubber sole