Referred to as the Nike Air Max BW, Nike Air Classic BW, or Nike Air Max IV, this running model first debuted in 1991. Known for their "Big Window" (BW) that showcases a maximum volume Air-Sole unit in the heel, they have been released in an array of colorways. And, to celebrate their 25th anniversary, there's plenty more coming in 2016. But first Nike is treating us with a re-release of the original. The Nike Air Max BW OG "Persian Violet" is a Tinker Hatfield design that boasts a Black/White-Persian Violet colorway, combination leather and synthetic upper, and a BRS 1000 carbon rubber waffle outsole. You can pick up this classic Air Max model now at Sneakerhead.