The Nike Air Tech Challenge II “US Open 2014” release date is set for August 21, 2014 at select Nike Lab locations. The silhouette is dressed in a USA-inspired color scheme. Featuring two shades of Blue, White hitting the front and midsole of the shoe and Red found on the back heel. In addition to a Red back heel is a stitched “USA” in Gold. Check out the detailed photos below and let us know if you’re a fan of this “US Open 2014” inspired Nike Air Tech Challenge II in the comment section.