Chantelle Women's Merci Lightweight Nursing Bra Cup: 92% Polyester, 8% Spandex; Knit: 74% Polyamide, 26% Spandex; Lace: 80% Polyamide, 20% Spandex Imported Hand Wash Nursing clips at the top of the cups can easily be unfastened Lightweight spacer foam underwire cups Comfort-flex underwire provide lift while adapting to your changing shape U-shaped back helps to take weight off your shoulders for the ultimate comfort-fit Fully adjustable straps