NIKE Pro Combat Dri-Fit Vapor Bandana (One Size Fits Most, Anthracite/Volt) 84% Polyester, 16% Spandex Nike Pro Combat Dri-Fit Vapor Bandana. Vapor graphic helps complete the athletes uniform Dri-FIT fabric to wick sweat away and help keep you dry and comfortable Lightweight, stretch fabric makes for customized fit Versatile and customizable to ensure comfortable fit underneath a helmet