Purple Ribbon Cancer Awareness Knee High Socks Sports Teams Walk Effective 9/3/13 - Per requests from our customers, we are now manufacturing this sock with a slightly larger calf. This was a requested feature from many reviewers that we add a purple ribbon sock to our collection. We are happy to be able to accomodate these requests for our customers. Great Quality - Unique Designs Sized 9-11 fits shoe sizes 5-12 85% Acrylic/10% Nylon and 5% Spandex Great for walks, runs, team sports and more!