TYR Racerback Tankini- size M(?)

Stylish and comfortable racerback swim tankini -tank top in black/ and greyish blue…. Keyhole back straps - Could go with grey or blue. Size tag is removed - is close to medium size. Measurements pit to pit is 14.5 inches-bottom/hip area width is 19.5 inches-length is 18 inches- from neckline to bottom hemline.