Molded cups suggested for B and above Supportive sling construction lifts & separates breasts without underwire All-over compression with 360 ° stretch for a perfect fit Bonded panels with release points give extra shaping and control for upper back Stays put with patented silicone gripper edge Wicking fabric keeps you cool & dry SKU #: 3029 Body: 75% Nylon, 25% Spandex