Tennis legend - André Agassi rocked these at the 1991 US Open, making the Nike Air Tech Challenge 4's one of the 90's most sought after tennis shoe. Nike is running production on these bad boys again for Summer 16', and we're sure these will sell out quickly. Featuring the nostalgic 90's retro zig-zag patterns, painted in black, white, grey. Alongside a distinctive heel pattern with the signature Nike Air bubble. These will be hitting select retailers this August for €130 EUR (approximately $147 USD).