Features Our #1 underwire sports bra provides a perfect fit High-impact support reduces bounce by 83% Encapsulated cups supports each breast individually Greater comfort thanks to silicone encased underwires Eliminate chafing and irritation with smooth, flat seams Ease shoulder pressure with wide, cushioned straps Customize your fit with back adjustable stretch straps Converts to racerback with easy to use J-hook Cushioned, 3 column, 3 row hook and eye back closure Moisture-wicking stretch microfiber & breathable mesh Style Number 5021 Content Body: 49% Polyamide, 36% Polyester, 15% Elastane. From smoke free home Bra was a demo for a store so may have been tried on a number of times