Spanx Air Essential Romper Black, Sz Small. The Air Essential Romper is made with spacer fabric that’s lightweight, luxuriously soft and ultra drapey, this AirEssentials Short Sleeve Romper is your one-stop-shop for total comfort and flattery. Designed with refined comfort to feel silky against your skin, this throw-on-and-go style will take you anywhere and everywhere.Light-as-air fabric. Light-as-air fabric Fine knit structure offers maximum softness Optimal air flow and circulation for all-day comfort 4-way stretch for easy movement Cinch waist design with draw string for custom fit