Patented Thuasne Top'strap support band: effective support that significantly reduces vertical and horizontal acceleration of the breasts. Full inner lining and padded shoulder straps for great comfort during sports activities. Preformed cups in support fabric and rigid inter-breasts for better breast support. Mesh back fabric wicks away moisture and perspiration. Includes headphone loops. Composition: 62% polyamide, 25% polyester and 13% elastane.