This bikini set is stretchy, lined, and wire-free throughout the entirety of it. The top is a halter neckline with built-in padding for comfort, support, and the perfect shape. It’s also equipped with spaghetti strand closures around the neck and backside. The bottoms are a natural waistline with three strands on the sides, matching the top identically. Hi The material is 82% nylon and 18% spandex. Size Availability: Medium PLEASE READ SIZE CHART (INCHES) BEFORE PURCHASE.