Columbia Women's Bonded Micro Bikini 78% Nylon, 22% Spandex Imported Machine Wash Bonded micro bikini in super soft fabric. No visible panty lines Fabric is lightweight, breathable and fast drying Bikini has moderate back coverage Omni-wick advanced evaporation pulls moisture away from the body and enables perspiration to evaporate quickly, keeping you dry and comfortable Tag less comfort, contrast edge detail and embossed logo waistband