100 Percent Cotton Menstrual Pads I was skeptical too, until I tried them. I did a lot of research in terms of the best fabrics for the inner portion, I was thinking that some kind of charcoal filter would be needed to control the bad odor. Boy, was I wrong! It turns out that Disposable Pads are the Problem and they cause the bad smell. So when you are using a 100 percent cotton - you don't need to get rid of smell, because there is none. I offer 10,5"/26 cm - a really good size that is suitable for days of "heavier flow", but at the same time on your "light" days - you will not feel it. It is not leakproof, because I am using organic materials for it, but you will feel confident wearing it. Of course it is best to presoak them in cold water before washing them on COLD. Maintenance is pretty easy and self-explanatory. I washed and dried them no problem. MATERIAL - 100 percent Cotton.