Here's a strapless two-piece long prom dress 49832 that hints at seductiveness. With a twist-front crop top, this two-piece long formal dress gets a uniquely bold look for prom, galas, and other black-tie events. The two-piece evening gown has a bare midriff and a hip-hugging long mermaid skirt that flows to the floor to complete the design. A glorious statement gown for your big night, this two-piece long prom dress is as alluring as it is stylish.