Air Max Plus III (top) and IV (bottom). I found a pair of IVs in a thrift store a size or two too small, and I've never found a pair of IIIs in my size. And from what I remember, I think I've only come across 2 pairs of the IIIs as a grader. On both pairs, the heel cage began separating from the upper. a few years back someone's careless Niketalk post had me calling the foot shops in far off locations in South Carolina and Georgia trying to track a pair down 😂 Anyway...@nike would be doing everyone a favor if they brought back those IIIs.