Certified Organic by USDA. Oi - Pantyliners Ultra Thin - 24 Count Oi -Panty Liners Ultra Thin is made with organic cotton. These pantyliners are suitable for light flow or everyday use. Oi organic pure cotton pantyliners don't contain any harmful fragrances, chemicals or synthetic materials, so you get pure comfort and non-irritant protection. Suitable for light flow or everyday use 100% p