Black lace strapless dress

Black lace strapless dress. Black lace over black underlay. Ribbon ties around waist (optional) 29 inches long, 17 armpit, 16 (32) waist. Pretty true size 10. Fully lined (with a silky material) and has light structure/braces/support in top. I think the lace is probably cotton, and the underlay silky polyester? No material tag on garmet. Worn once as bridesmaid.