The Shox R4 'White Metallic' was released May 2019 in a light colorway that gives the first model from 2000 a makeover for summer. Reimagining the shoe that starred in Nike's 'Boing, Boing' ad campaign, this iteration is designed with the distinctive wavy lines and perforations of the original but in modern shimmering detail. Inspired by a spring-shoe contraption Bruce Kilgore devised in 1984, the Shox collection was launched after sixteen years of multiple tweaks and tuning.