Blaque Label backless long sleeve cocktail dress | S

Subtly sexy backless long sleeve Blaque Label dress. Dress, excluding sleeves, is fully lined. Approx. 40” length, I’m 5’ 7” and this hit at the knee on me. Fabric has spandex but I found it did not stretch much. The gathering at the back of the dress looks like it would be elasticized but is not. Excellent used condition - worn to two weddings and dry cleaned but shows no signs of wear.