Victoria?s Secret black chemise. Adjustable straps and sheer polyester chiffon through the body. Pair with your own panties. Or don?t. Lol. As the straps are set, it is 30 inches shoulder to hem measuring 13 inches armpit to armpit when relaxed but the elastic running around the under bust area stretches to 19 inches without much resistance. Also, since the back is open, there?s a lot of flexibility with bust sizing.