Comfort for Larger Feet. Relief for Sensitive Conditions. Designed specifically for shoe sizes 12–15, the Plus Size Medi Sock offers all the therapeutic benefits of the original Medi Sock — with added stretch and room for broader feet. Ideal for diabetics, individuals with poor circulation, or anyone needing extra comfort, these socks combine breathable mohair with bamboo and wool for moisture control, insulation, and softness.