vintage 70s John Kloss hot pink t back gown

vintage full sweep gown (yes, it’s a nightgown, &, yes, you want to wear it as a dress even though it’s a bit sheer) of silky nylon. length is 54.5,” bust to 35,” elastic band at high waist where your bra strap would be) stretches from 20”-31,” hips to 80” bc of full skirt. pulls on overhead. marked a medium, but please go by measurements as vintage runs small.