Sanitary napkins made of 100% organic cotton from Tanzania on the top sheet that comes into direct contact with the skin. It is a fair trade organic cotton born from the bioRe project, which conducts social projects such as local women's employment. It has a natural softness that synthetic fibers do not have. Oxygen-based bleaching is used for bleaching the top sheet. Since the components of oxygen-based bleach are substances that originally exist in nature, they have an overwhelmingly low environmental impact and are safe for the human body compared to chlorine bleach. Only plant-derived cellulose pulp is used as an absorbent material to catch menstrual blood. Since it does not use petroleum-derived absorbent polymers, which are commonly used in thin napkins, it has a plump thickness like cloth napkins. It is a MADE IN JAPAN product manufactured at a partner factory in Kagawa Prefecture.