Outshine the disco ball. Our backless mini dress is made in a hypnotic sequin pattern for a one-of-a-kind party look. Sequin Flare Sleeve Backless Mini Dress Backless Dress Sequin Dress Long Sleeve Dress Boat Neck Backless Tie Back Detail Model wears a size M (US size 6/UK size 1).Shine on. Rock your PM plans with an array of timeless sequin outfits. Shop mini and maxi sequin dresses to the perfect sequin tops to pair with jeans. Ensure your outfit is one to remember.