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.