Plus Size Flapper Costumes Adult 1920's Flapper Dress Costume Morph, 1920s Plus Size Flapper Costume, Flapper Dress, 1920s Dresses Amazon.com: FUNDAISY Women's Sleeveless Flapper Dresses 1920s Evening Women's Plus Size 1920's Flapper Costume Dress Decades Costume Women's Plus Size 1920's Flapper Costume Dress Decades Costume. This elegant Black 20's sleeveless, velvety (polyester), long dress with a jagged handkerchief hemline, u shaped neckline is perfect for Halloween, Peaky Blinders looks, cosplay, theme parties, theatrical productions and more. Other 20's and Flappers costumes and accessories (headpieces, wigs, boas, leg wear, pearls, cigarette holder props) are sold separately on our page subject to availability. Available in Women's Plus Sizes 1XL or 3 XL. Costumes typically run a little smaller than regular clothing sizes. Please purchase accordingly.