Comfort, safety and efficiency, these are the main characteristics of the Bio String™ Menstrual Tanga Panties. This underwear is stretchy, durable and comfortable. Enough to allow you to spend all your days and nights dry, without having to resort to disposable sanitary pads. The Bio String™ Menstrual Tanga has a double protective layer to keep you active. You will therefore have the opportunity to do sports, go out on a hike or dance without fear of any escape. Once properly adjusted to your size, these menstrual panties from Purina can absorb 20 ml of fluid.