Released in August 2018, the Nike EXP X-14 'Black' sneaker is a daring silhouette that takes inspiration from Nike’s past running styles. Short for ‘experiment,’ the EXP X-14 combines a layered translucent upper with a neoprene collar and suede heel tab with convenient Flywire cables. ‘N3546’ printed on the medial side is a nod to track star icon Steve Prefontaine’s fastest mile (3:54.6 seconds), while underfoot, a React midsole and durable outsole complements this boundary-pushing design.