This backless dress is both polished and sexy and fit to flatter.This Sequin Halter Dress by Lili Sidonio is perfect for a night out. It's made from quality sequins and features a flattering halter neckline, giving you a stylish and glamorous look. The mini length is perfect for dancing the night away. Make a statement with this must-have dress. Dark grey silver sequin. Halter dress. Open back. Fit is true to size.