The menstrual blood on many days is absorbed all at once without giving the spreading skin. The part of series is 20.5cm. Plenty of absorbing polymer is tightly confined, so there is no fear of leakage and the surface is smooth. Furthermore, because the entire napkin is supple with the slit absorber, there is no worry about gaps or discomfort. It is a napkin that is very slim but can be used on many days.