Chelsea Away Vapor Match Shorts 2017-18 As worn by the Chelsea players, the Chelsea Home 2017-18 Vapor Match Shorts use Nike AeroSwift engineered lightweight fabric to maximise movement and enhance agility. The slim cut fit offers zero distractions, while an elastic waistband ensures they're secure. Stretch knit fabric moves with the players. Details: • Nike AeroSwift lightweight engineered fabric • Slim cut silhouette • Elastic waistband • Chelsea FC crest • 100% polyester