Mermaid style dresses are so beautiful and magical! These dresses are tight at the top and fit snugly around the body, but at the bottom, they flare out like a mermaid's tail. The Adriana Mermaid Gown with Train Emerald 4 Strappy Open Back Long Mermaid Prom Dress with Ruffles Hunter 3XLarge Rails Dresses Nwt Rails Monique Mermaid Midi Dress Sz Small 248 Poshmark Rails Monique Dress in Mermaid REVOLVE