NWT Cupshe Sapphire Blue High Neck One Piece Bathing Suit. Size Small Open Back Detail with Black Mesh Cut Out Tummy Control Fast Shipping Dive into elegance with this sleek blue one-piece from Cupshe, featuring a sophisticated halter neckline and a form-fitting silhouette. Perfect for both swimming and beach outings, this timeless design offers a versatile and stylish look.