Combined our feet have over 250,000 sweat glands that produce up to 8 ounces of fluid a day. Bacteria and fungus grow when sweat is trapped against the skin.

Cotton socks are the worst for trapping moisture against the skin.

Synthetic fibers like polyester wick away moisture, but bacteria is trapped in the fiber and is re-activated when warm and sweaty. Synthetic socks create a cycle of increasing odor with each use. 

Why wear wool?

To prevent this gaseous odor, socks must wick away the moisture that is the playground for bacteria!

The best sock is a thin merino wool or alpaca sock. These natural fibers wick away moisture, are naturally antibacterial, and are comfortable in both hot and cold climates.