By Mara Hoffman High-waisted bikini bottom made from ECONYL Regenerated Nylon and spandex with UPF 50+ protection. Fully lined with a mid-leg opening; Moderate coverage. 78% ECONYL, 22% Spandex ECONYL is a 100% regenerated nylon fiber made from pre and post-consumer waste, like fishing nets, industrial plastic waste and fabric scraps. Hand Wash, Air Dry To best care for this garment, we recommend a hand wash with cold water and mild soap. Lay flat or hang to air dry. Do not bleach, iron or dry clean. Lydia Bikini Bottom - Black