These are great! First, they reduce the waste that goes into our landfills. Second, they are much more comfortable than disposable pads. Third, they are much easier on underwear since there is no adhesive that pulls on the fabric. Fourth, they hold up well and protect your underwear regardless if it’s light or heavy flow. There is a snap that closes on the bottom to attach it in place, and there are two snap options to get the right fit. They are surprisingly comfortable and soft, a fleece type fabric. It’s a great pad and I highly recommend them.