KOOYOL Cotton Underwire Nursing Maternity Bra Push Up Bralette Material: 95% cotton + 5% Spandex Hight Quality Underwire Maternity Nursing bra Cotton Fabrics is much more breathable, and more eco-friendly Lace design in center makes you more charming at any time. Cotton Fabrics is much more breathable, and more eco-friendly. Please check the size details before you make purchase decision