Dr. Comfort Diabetic Over the Calf Socks are designed to keep your feet healthy. Their smooth-seam construction reduces the risk of unwanted friction that can lead to calluses. Nano bamboo charcoal fibers help keep your feet dry, which prevents infection. And because they're non-binding, they don't inhibit your circulation. Dr. Comfort Diabetic Over the Calf Socks are available in white and black. Sock Sizes Mens shoes AUS Womens shoes AUS X-Small N/A 5-7 Small 6.5-8 7.5-9 Medium 8.5-10 9.5-11 Large 10.5-12 11.5-13 X-Large 12.5-15 N/A