Works great for thin and thick hair [SEP] I've got thick, curly hair which falls to my hips and my seven-year-old step-daughter has thin hair falling to the small of her back, and we are both very happy with this product. It fits on both of our heads comfortably (I was worried it would be too big for a child's head, but it works perfectly for both of us), the elastic is tight enough that our hair doesn't fall through, and it's large enough to hold all my hair, unlike the transparent plastic ones you can get in the drug store which are always too small to cover my whole head of hair.