Our Mustique Demi-cup bikini top supports and lifts with molded underwire cups. Adjustable spaghetti straps to adjust to perfect sculpted fit.   Model is wearing a Size S. This style runs true to size.  Shell: 65% Econyl® 35%EA. Lining: 73%Nylon27%EA The fabric features a high modulus stretch, designed to enhance curves and remodel the silhouette with a firm and flattering fit.