Women's Blue Low Cut Plunge Back Mermaid Formal Special Occasion Gown Long Dress Material: 96% polyester, 4% spandex; contrast: 92% nylon, 8% spandex Measurements (in inches): Small: Length - 61 / Bust - 14-18 / Waist - 11-15 / Hip - 15-18 Medium: Length - 62 / Bust - 15-19 / Waist - 12-16 / Hip - 16-19 Large: Length - 62 / Bust - 16-20 / Waist - 13-17 / Hip - 17-20 Location: 180 -- 40(mv).