Strapless. Cushioned hook-and-eye back closure. Full-coverage contour cups for natural shape. Wireless comfort that's still supportive. Removable, adjustable straps so you can wear it 5 ways: strapless, halter, crisscross back, traditional, and one shoulder. Fully lined with soft and comfortable exposed spandex to stay put. Body: 71% nylon, 29% spandex; Wing lining and cup lining: 71% spandex, 29% nylon; Shoulder strap: 83% nylon, 17%