The Nike EXP-X14 SE ‘Olive’ sneaker gets a neutral update for Fall 2018. Short for ‘Experiment’, the EXP-X14 is named after the Nike Sportswear designers that created the lifestyle shoe with innovative performance details such as Nike React, a responsive foam cushioning. Special design tributes include ‘N53546’ detailing, that pays homage to record-breaking Olympic athlete Steve Prefontaine’s fastest mile of 3 minutes and 54.6 seconds.