Wacoal Simone Style No. 855170 High Impact Gray/Pink Unusual construction: the underwire is OUTSIDE, much more comfortable. Bra straps are adjustable (also unusual on a sports bra). Cushioned outside underwire to prevent chafing... Straps w/ slide-and-hook adjustment in back offer a customized fit... 80% Polyamide Nylon/ 20% Spandex/Elastane Selling because: I gained weight and it no longer fits.