Shell: 80% Nylon 20% Lycra Spandex. Lining: 100% Polyester. Resists bagging sagging and the effects of suntan lotion skin oils and chlorine. No Wedgie Worries technology with silicone gripper at leg openings for stay put coverage. Xtra life lycra fabric lasts 5 to 10 times longer to give you more value for your money. Wash Dark Separately Line Dry. Imported.