Nike Air Metal Max "Neptune Green"Nikes 90s training footwear was big, bold and bulky to a fault, and few silhouettes encapsulated that expansive ethos better than the Air Metal Max, a classic style from 1997 thats now returned in a crisp Neptune Green colorway. This marks the first time Nike Sportswear has pulled the Metal Max out of the archives in almost two decades the last time it hit shelves was in the mid 00s.