milo
Jack L. Jones
I think that it is more to do with being successful and having a succession of good black players.I think Arsenals appeal to an urban and multi ethnic fan base ie most of North London is in part down to their association with Nike.
By contrast out very conservative (small c) image probably doesn't appeal to Nike's brand identity and so I don't see a natural synergy between us and Nike. That said they sponsor Everton.