The adidas ZX line began in the 1980s with a mission to create shoes to suit runners of all strides. The original ZX 600 sneaker debuted in 1985, specialized for serious runners. The shoe was updated through this neck-breaking colorway in 2008. This model includes a double lacing system for a personalized fit and lightweight polyurethane and EVA cushioning. A rugged outsole below helps improve traction.