It’s always a tough task trying to calculate just how many different pairs of a given sneaker you can create with NIKEiD. It just got even tougher for the Nike Air Max 90 iD, as that platform has done a little bit of tweaking to offer you a little bit more. As of now, you can build a pair of 90s with either the Classic, Lunarlon, or Natural Motion kit on bottom to go with whatever wild upper you decide to create. See some examples below and then get over to NIKEiD to build your pair today.
Source: NIKEiD