Teal slip dress worn 1x Prom? Semi-formal? MED.

My daughter wore this dress once to a semiformal dance. Beautiful teal color skip dress with adjustable spaghetti straps. No zippers, it is a pull over dress. Ankle length with slit to knee. Has a very nice blousing effect at the neckline. No flaws: worn the one time, cleaned, and stored. No stretch. Measures 16" across the chest, 44" in length with a 20" slit.