Women's Core Active Cami Sports Bra With Mesh Back About This Item Spacedye: 88% Polyester/12% Spandex Inner Bra Body: 92% Polyester/ 8% Spandex Body: 80% Polyester / 20% Spandex Inner Bra Body: 92% Polyester/ 8% Spandex Sports Bra Medium Impact Adjustable Straps