Early 90’s classic the Nike Air Tech Challenge IV OG will be returning to Nike Sportswear retailers this Spring. Most notable for being worn by Andre Agassi, the Tech Challenge series became the famous tennis player’s signature sneaker worn at many tournaments. One of the original colorways from the 4th chapter, will be returning featuring it’s OG colorway of multicolor, black, white and several other tones that were in tune with the 90’s trends. Look out for these at retailers like Sivasdescalzo.