When it comes to socks, natural fibers aren't always better. We're so used to thinking of natural as better that cotton socks seem like the best choice. But foot experts say that's the worst choice, especially if you're active. This is one case where man-made fibers truly are better.
Cotton tends to hold in moisture.
Damp skin is vulnerable to tearing and damage and the result is blisters. For everyday casual wear, cotton socks are fine. But if you're going to be running, hiking or walking long distances, look for socks with extra cushioning and fibers that keep moisture away from the skin and dry quickly. Doctors at UT Southwestern Medical Center at Dallas say keeping your feet dry is good for a number of reasons. Not only does it prevent blisters, but a damp environment helps foot fungus to take root.