For Exceptional Breathability Individually-Wrapped Ultra-Thin 100% Cotton - Core & Coversheet Absorbent Core is 100% Breathable Cotton Leak Guard Channels 100% Soft, Breathable Cotton Coversheet Individually Wrapped Four Adhesive Strips Keep it Secure You wouldn't wear plastic underwear, so why wear a pantyliner that's not 100% natural, breathable cotton? 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 of our pantyliners 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.