Ask any sneakerhead to name the greatest collabs ever, and the Undefeated x Air Jordan 4 will, no doubt, rank right near the top of the list.
These days, a new sneaker linkup gets unveiled every single week. But when this grail first dropped in 2005, it was unbelievably rare. In fact, this was actually the first Air Jordan collaboration ever. And with only 72 pairs made, many people lost out the first time round (and yes, many people cashed in on resale platforms).

