Fashion Union Swimwear Halter Triangle Bikini Top in Black - it's a size XS and is NWT but the store tags look like it was chewed up by the dog lol. Doesn't affect the item, though. ;)

Triangle silhouette
Halter styling
Goldtone clasp closure at back w/ adjustable lengths
Lined
81% Nylon, 19% Spandex
Lining: 100% Polyester

#363