Croft & Barrow Women's Swimwear Bottom Bikini Blue Regular and Plus-Size 80% nylon, 20% spandex/lycra. Lining: 85% nylon, 15% spandex. 100% nylon. Material: 80% Nylon / 20% Spandex/Lycra Lining: 85% Nylon / 15% Spandex / Classic Style Hand Wash