NWT Berlook Cyan The Backless Lurex One Piece Swimsuit. Featuring a chic silhouette, this classic one piece swimsuit has a square neckline and an open scoop back, complete with dazzling lurex fabric. High-cut leg. Moderate coverage. 80% Recycled Polyamide, 11% Spandex, 9% Metallic. New With Tag. Size Large.