J.Crew striped bikini

J.Crew red-and-ivory striped bikini. Two sets of straps, for wearing as a halter or with shoulder straps. Top is 36A. Bottoms are size S, BUT they run big!! I’d say the fit is more like a generous medium. Please see pics for measurements. Lightly worn. On close inspection, there is some black sand within the fabric that didn’t come out during washing—see the last two pics.