Dr Comfort diabetic crew 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 crew diabetic socks are available in white and black. Features Non-Binding Top Nano Bamboo Charcoal Fiber Padding in Heel and Forefoot Y Toe Gore Eliminates Bunching X-Small4 to 65 to 7 Size Men Shoe Size Women Shoe Size Small 6.5 to 8 7.5 to 9 Medium 8.5 to 10 9.5 to 11 Large 10.5 to 12 11.5 to 13 X-Large 12.5 to 15 13+