These loose, backless, wide leg outfits emerged in the 1920s and 30s as resort wear, especially in places like the French Riviera and British coastal towns. They were stylish, modern, and, most importantly, Backless Dresses Open Back Dress Styles Selfie Leslie Women 1920s Great Gatsby Dress Long 20s Flapper Dress Vintage O Neck S 1920s Sequin Backless Formal Dress Retro Stage Spaghetti Strap Sexy Backless Maxi Dress TC store