Diabetic Friendly Charcoal Compression Socks WP4tm Wellness Socks are designed for anyone who suffers from diabetes, sensitive feet or poor circulation. Four zones of compression help improve circulation. Nano-Bamboo Charcoal fabric has been proven to help maintain healthy feet and skin. Seamless technology features non-binding comfort and mid-foot arch support in a shaped-to-fit design. Contoured padding cushions every step. Y-Gore heel plus Left/Right design for a perfect fit.