Made Of Super Soft Stretchy Fabric Cotton. Polyester 92% Spandex 8% Lining: cotton100% Back: cotton 93%, spandex 7%.select high-quality pure cotton fabric, delicate, non-irritating, safe, comfortable, healthy and environment-friendly; the fabric features soft & comfortable.no steel ring, comfortable, natural, relaxed; front button design for easy wearing; u-shaped back design that reduces wearing pressure and makes shoulders more comfortabl.Breast-feeding mothers, Middle-aged and elderly women,Women are sick or recover after surge.Thin Pads, soft And Breathable Which Always Retains Its Shape And Prevent Bra Bulges, Caresses Your Figure To Adjust To Your Curves.