Cotton is a natural fiber, which absorbs and retains moisture, often causing the skin to become macerated and wrinkled — just like what happens to the skin when it is submerged in a pool or bathtub for a long time. Wet skin is more likely to form blisters, which is why cotton socks should be avoided.[1]
Wear acrylic or synthetic socks that don’t retain moisture. These socks wick away moisture from your foot and help keep them dry and healthy.
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Dr. Kim
[1] http://www.abc-of-hiking.com/hiking-health/blisters.asp
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