Having debuted in 1990 on the feet of none other than Nike athlete and tennis legend Andre Agassi, the Nike Air Tech Challenge II returns this month in celebration of the US Open. The new design by Tinker Hatfield fuses its retro looks and influences with up to date technology. The clean white lines on the shoe reference the lines on a tennis court and the red and blue accents hint at the American flag. The Nike Air Tech Challenge II “U.S. Open” will release on August 21, along with the Nike Court Apparel Collection by Fragement and the fragment design x Nike Tennis Classic Pack.