Bodylok - menstrual panties Bamboo menstrual panties are a healthy and ecological alternative if you have your days. Their technology will protect you against leakage and odor. These panties are for HEAVY menstruation and can hold the amount of fluid like 3-4 tampons. They have a classic cut and a higher waist. If you are hesitating whether to take a smaller or larger one, choose a larger one. Composition: Inner part: 95% cotton, 5% Spandex Middle part: 100% Microfiber, TPU membrane Outer part: 75% Nylon, 25% SpandexSize chartBODYLOK - WOMEN PANTIES WAIST CIRCUMFERENCE SIZE (CM) S 64-69 M 70-75 L 76-81 XL 82-87 XXL 88-100