Old Navy, Black, tube top, one piece bathing suit

Old Navy, Black, tube top, one piece, bathing suit. It can also be worn as a halter or if you have any bathing suit or bra straps laying around, you can use them as to taste. No underwire but the cups are shaped with Boneing. In a size Medium. I measured 34" around breast area not stretched out. I don't know if that will make any difference. And 25" from top of bra to the end of the crotch area not stretched out.