Buy our thong panties in cotton and spandex blend for a perfect fit and comfort all day and night long. The thong panties in cotton and spandex stretches to fit your body and breathe which is awesome as the day grows longer. Sexy girls love them as they are comfortable and look great on them. 93% cotton, 7% spandex. Hand wash in cold water, do not bleach, do not iron, drip dry.