Kimchi Blue black long-sleeve lace back and sleeve romper

Brand new with half a tag (was a gift). Black romper with lace sleeves and back. There is a zipper on the back and there is no lining. **THREAD UNDONE ON BUM** as seen in last 2 photos. Easy fix for someone who knows how to do it. Never worn but I believe it was like that when purchased. 100% polyester Approximate measurements: across waist 13 in (33 cm) waist to bottom 13.5 in (34.3) total length 28 in (71 cm) KIMCHI BLUE purchased at Urban Outfitters I'm open to offers!