The healthiest underwear fabric for your vagina? Good aged cotton, says Dr. Wider. In general, fake materials like nylon, polyester, and spandex trap feverishness and moisture, while string is breathable and wicks divided moisture, she says. Not usually will we feel some-more comfy in cotton, though additional feverishness and dampness are a conditions leavening flower in. To safeguard that your thongs are vagina-friendly, buy brands that make a swimsuit partial 100% cotton, if not a whole garment.