none steel rings design, none steel rings, comfortable, natural, relaxed, front button bra do not oppression of the breast, none binding inconvenience at all and it will not deform easily Widely applicable, suitable for pregnant women, breast feeding mother, middle aged and elderly women, are sick or recover after surgeries women to wear at home female indoor or outdoor sports use, and so on Design concept, none steel rings, comfortable, natural, relaxed, front button bra, u shaped back can make the back smooth and help to show the beautiful back shape Front button bra, the front button design, none more backhand problem and hassle, can buckles it up easily from the front, and 3 dimensional cup design provides 360 degrees of coverage and none slippery fit the human body and highly elastic fabric, delicate, none irritating, safe, comfortable, soft and comfortable touch, & perspiration absorption and good air permeability.none steel rings, comfortable, natural, relaxed