4 pack of MediPeds low-cut socks are specifically designed to alleviate circulation issues, such as those caused by diabetes. Featuring a cushioned sole and non-binding top, these socks also offer the COOLMAX moisture management system to keep feet dry. Lycra spandex offers the ultimate fit and helps hug feet, reducing slippage which could cause blisters. Fits men's shoe size 9-12 and women's shoe size 10-13. Satisfaction guarantee-if you are not completely satisfied with your PEDS product, simply return them to us for replacement.