I'm aware of the women's and toddler sizes, but I'm completely confused about the "girl" sizes. When will you switch from girls to women? I came in "big girl" size, shoe size 4-10. I wear size 6 shoes and they fit me perfectly. The spandex stretches them a bit. They are very soft and light. I think they would be considered lining rather than socks. The colors are really cute and the deeper heel pocket prevents slipping.