The Nike EXP-X14 "Viola" women's sneaker brings flair to the silhouette with transparent details. A modern take on the late 1990s running shoe called the Nike Zoom Drive, it features a translucent upper. "EXP" stands for experiment and "X14" represents the brand's internal code name for its React cushioning technology. For this style, light grey covers most of the upper, while black handles the lacing system and rubber toe tip. Pink and green shade portions of the heel, and the shoe sits on an impeccably white, cushioned sole.