Curvy Kate Women's Smoothie Balconette Bra 58% Nylon, 27% Polyester, 15% Elastane Imported Hand Wash Balconette bra in textured pattern featuring banded underwire for additional support and comfort Foam cups provide a smooth rounded shape Power mesh band back provides additional support and keeps band in place Side boning helps stop the band from rolling Back adjustable straps with a J-hook converts the straps to a racer back