How Marathons Became Fashion Shows

Abe Chavez is the fashion manager at buzzy New York-based luxury boutique ESSX, where his responsibilities include managing the store’s relationships with high-profile celebrity clientele like basketball star Jaylen Brown and American football player CeeDee Lamb. But earlier this week, Chavez was tasked with a different role altogether: leading a run club through Manhattan’s Lower East Side.

Everyone from regular consumers to influencers to local fashion cool kids and Brooklyn-raised…