"Double adjustable strap provides up to an additional 1 1/2"" of fit flexibility and enables the strap to stay centered on shoulder." Fiber Content: Center Belt Lining, Inner Strap: 100% Nylon. Strap Extension and Pad: 100% Polyester. Center Belt: 100% Polyester. Embroidery on 100% Nylon Base Cup, Back: 85% Polyester, 15 % Spandex. Strap Lining: 75% Cotton, 25 % Polyester. Exclusive of Trim and Elastics. Country Of Origin: USA or Import