Center string bow tie that can be tightened slightly - bringing the cups closer together helping accentuate your boobies. Shallow cup design that lays just above the nipple line. This style becomes more busty as boob size increases. Non-adjustable rib cage band with adjustable slide shoulder straps. Fit is true to small - best to size up if in between two sizes. Internal cup padding that can be removed and re-inserted through the pocket space. Breathable and fully lined with two layers of high quality fabric. Fabric feels thicker and more luxe than other brands. 72% Polyamide. 25% Polyester. 3% Spandex.