Originally released in 1989, the Nike Air Tech Challenge II is famously known as one of Andre Agassi's signature sneakers. The original and vibrant ATC II "Hot Lava" made a huge comeback earlier this year, and now Nike is hitting us with several new colorways. With a definite 90s feel, the "Kumquat" model has a light orange colorway with soft blue accents, paint splatter details, and traditional ATC II design. This summer-ready version of a classic tennis shoe is now available at Sneakerhead.