Girls socks in medium lavender cotton cuff. Thinner sock yields slimmer fit in shoes. Sock size 6 - 7.5 fits shoe sizes of 7.5 (childrens) to 11.5 (childrens). 70% cotton, 25% Nylon, 5% Spandex(r). From premium children's hosiery manufacturer Trimfit. What is the difference between lavender and orchid on this site? Lavender has more blue undertones and orchid has more pink undertones.