Odor eater socks are a particular type of sock that use drying agents and antimicrobial solutions to eliminate the bacteria that causes foot odor. There are numerous brands and styles, but they all focus on reducing foot odor through the same basic methods.
Bacteria grows in warm, damp places, which makes shoes an ideal place for bacteria. The basis of odor eater socks is that they eliminate moisture to help get rid of any environment that allows bacteria to grow. In more advanced versions of these socks, antimicrobial formulas, often containing silver and iron, are used to help slow the metabolism of odor-causing bacteria.