The Nike Air Max 2017 Cool Grey runners have a lot going for them. The aligned flex grooves.It provides enhanced comfort. It also and rounds up the design of the latest colorway. Construction of the Nike Air Max 2017 Cool Grey silhouette features lightweight, breathable, and comfortable one-piece Flymesh uppers, a plush collar, molded foam wraps, and soft rubber outsoles. The iconic full-length Air Max unit and flexible cushioning technology provide arch support and much-needed heel-to-toe comfort when navigating rugged terrains. The Nike Air Max 2017 Cool Grey cool grey colorway model was released in January 2017, retailing at $190.