Modcloth Twist Come True One-Piece Swimsuit | Blue Size 18W Plunging neckline Knotted waist detail Shoulder straps that cross within its open back Body: 85% Nylon, 15% Elastane. Body 2: 92% Nylon, 8% Elastane. Lining: 90% Nylon, 10% Elastane. Lining 2: 76% Nylon, 24% Elastane. Adjustable straps. Fully lined. Padded bust.