ThirdLove bra crafted in soft signature All Day Lace and cooltouch, silky, lightweight microfiber All Day Lace is made with over 50% recycled content Made with Precise Sizing™ to fit everyone from A to G + and ++ cup options for a better wireless fit Wireless memory foam cups for shape and coverage Adjustable, convertible shoulder straps Vertical seams for added shape Hookandeye back closure Recycled nylon/nylon/spandex Imported Size Note:Precise Sizing™ uses the idea of lettered sizing with scaled cup sizes for a better, more comfortable fit. Specially designed to alleviate issues small bands with large cups experience.XS-3X: best for up to C ½ cups XS+-XL+: best for D-E ½ cups XS++-XL++: best for F-G cups