Demkini strapless and backless bra

This is unworn - got it just in case. It is all about a tan without strap marks (or to wear under a dress with no back)! I would assume it has some decent support with the underwire but am guessing it is best for B-C cup which I never was, sadly. Hate to just donate it as these things are hard to find when one needs them so hope it is helpful to someone here!