Earlier last month, we shared a look at the upcoming “Clay Blue” Nike Air Tech Challenge II retro. Already a highly anticipated release, and rightfully so, Nike has just officially unveiled the March 22 drop. Coming on the heels of the “Hot Lava” bring back, this colorway adds to Nike’s continued celebration of Andre Agassi’s epic run with the Swoosh. Yet another classic creation designed by the legendary Tinker Hatfield, sneakerheads will be able to cop these next weekend. Check out the official photos after the jump and keep your browsers locked to SneakerFiles for more.