backless wedding guest dresses Imogen Halter dress Zella for formal occasions and parties or for a hot summer day Jewel Long Sleeves Open Back

We looked for quality indicators such as consistent, closely spaced stitching, sewn-in linings, and carefully executed details

Even now, 30-something years on, fashionheads still think of it as the glory days of style: minimalism and maximalism went toe-to-toe, celebrities wore their own shit on the red carpet, and clothing was actually built to last

Monroe, one of the 20th century's most famous sex symbols, wore the dress as she sang "Happy Birthday to You" to Kennedy in a breathy performance at a May 19, 1962 fundraiser for the Democratic Party in Madison Square Garden in New York

For a look that stands out and goes day to night, try accessorizing your LBD with a crisp, white button-up underneath