85% polyamide, 15% elastane. In order to keep the product in prime condition, please follow the following instructions: Wash the item by hand only. Use cool water and refrain from using any bleaching products. Let it dry in the shade. High concentration of chlorine will deteriorate the product quickly. make sure to rinse the item upon exiting the pool. Do not leave items in wet condition inside sealed bags. Do not use any tanning oils that may leave stains.