Nike Air Mag Self-Lacing (2016)

Limited to just 89 pairs via charity auction, the 2016 self-lacing Air Mag is the most scarce Nike ever produced — fulfilling the Back to the Future promise and raising $6.75M for the Michael J. Fox Foundation. This is trophy-asset demand: capped supply, global pop-culture recognition, and charity-release provenance keep it entirely insulated from ordinary retro market cycles.