Black Sweetheart Mermaid Velvet Prom Dress With Removable Sleeves CHP0 Charming Mermaid Sweetheart Navy Velvet Long Prom Dresses with Slit Black Mermaid Sweetheart Neck Velvet Long Ball Dress with Slit Black Sweetheart Neck Sleeveless Long Mermaid Prom Dress With Straps Unique Mermaid Sweetheart Black Long Prom Dress With Sleeves P584. Fabric: Polyester. The fabric is comfortable for skin. Package Contents: 1x Women Dress. Occasion: Whether you are dressing it for a wedding party, prom, evening party or any other occasions, this party dress will be your lovely partner.