Lilyette by Bali Women's Comfort Control Foam Bra Cups and Backs: 76% Nylon/24% Elastane; Lace: 82% Nylon/18% Elastane Hand Wash New ultra thin, rigid foam for maximum support and contour shaping Seamless, underwire cups with invisible concealment for modesty under shirt Breathable lace trim in center and back 2-ply wings and power insert reduces shifting throughout the day Stretch hook and eye adds fit flexibility around the body