First released back in 1990, the Nike Air Structure Triax 91 immediately became an iconic shoe. Since initial release it has never been available - until now. Combined with the Nike Footbridge technology with the Air unit but the real feature that snapped necks was the infrared accents on the instep. The original Colorway of the Nike Air Structure has a classic shape made of smooth black/grey suede, white mesh accents and the lovely teal swoosh. At the heel you can find the infrared Nike stitching.