For Exceptional Breathability Classic Contour Absorbent Core is 100% Breathable Cotton 100% Soft, Breathable Cotton Coversheet For Adhesive Strops Keep it Secure 100% Cotton - Core & Coversheet Made without: Cellulose-wood-pulp Chlorine-dioxin Polymer additives Perfumes (unscented) You wouldn't wear plastic underwear, so why wear a pad that's not 100% natural, breathable cotton? We have a range of pad and pantyliner products for-light, moderate and heavy flow- and all of them feature 100% natural cotton coversheets and core. What you put next to your skin matters. At Emerita, we've been improving the health and lives of women since 1978. What you put next to your skin matters The absorbent core and coversheet our pads are made from 100% natural cotton. There's no cellulose wood-pulp filler, plastic coversheets or polymer additives. Cotton is naturally fluffy and breathable. Which is important because your vagina is a delicate ecosystem. It like good airflow to be its healthy best. Because cotton is naturally white, it does not require chemical bleaching for whitening. The cotton we use in our pads is cleansed with a mild hydrogen peroxide solution, so our products are made with chlorine/dioxin. Keep chemicals away from this very chemically absorbent area of your body. Mother (nature) knows best. Choose 100% cotton.