The layer of fabric around the elastic band means that your hair won’t get tangled and knotted with a scrunchie. I have used good hair ties and no matter what they always pull my hair out. The same goes for my daughter. Trying to take a hair tie out of a 2 year old’s hair is not easy and the hair ties always have hair stuck to it when I remove them. A scrunchie won't do that.
http://www.bulkhairaccessories.....com/hair-scrunchies