Butter Yellow Mermaid Floor Length Dress Backless. Very good preowned condition. Size small. No brand or size Light yellow, mermaid silhouette, floor length, sweetheart v-neck, backless with criss cross detail, side zip closure, lined, light boning and padding in bodice. Length - approx 62 inches Chest width - approx 17 inches Waist - approx 27 inches Hip - approx 36.5 inches classic, formal, prom, bridesmaid, evening wear, black tie, party, special occasion, pastel, mermaid dress, fitted, drop waist, butter yellow floor length dress, open back, low back