No underwiring all in lace and perfectly designed for nursing we love it triangle shape nursing bra without underwiring the practical nursing cups on this bra open quickly thanks to a special clip fastening system on the straps lace trim on cups wide elasticated underband with lace trim 3 position double hook back fastening for b and c cups 4 position triple hook back fastening for d e and f cups what you need to know tip take your measurement at the end of your pregnancy and or