82% Nylon/18% Spandex Fabric:82% Nylon,18% Spandex. Tankini skirt with elastic wide waistband design provide more comfortable feeling. Slight ruffle hem,looks sweety and lovely,covers bum and upper thighs perfectly. Attached built-in briefs with a soft white lining in the front to add a layer of protection. Tankini bottom match well with any sports bra/ tankini top/ bikini top, great for beach vacation,holidays, pool parties, outdoor activities.