Strapless Sweetheart Neck Prom Gown with High Slit Black Prom Dress AR High Low Sweetheart Neck Strapless Backless Satin Prom Dresses Black Sweetheart Open Back Sequin Sheath Long Prom Dress With Straps Blue Shimmery Print Dramatic Ruffled High Low Sweetheart Prom Dress Sheath Velvet Prom Dress with Ruffled Open Long Sleeves and Hollow Bac Red Strapless Sweetheart Neck Tiered Tulle Prom Dress. This dramatic prom dress features deep burgundy satin fabric: it has a sweetheart neckline, strapless design, form fitting sheath silhouette, open back detail, and a high low floor length hem (with cascading ruffled accents). The bold, glamorous style is perfect for evening proms, red carpet events, or statement making formal gatherings.