USOA boot socks are not your average socks. They're designed to excel in harsh conditions to serve military personnel, public safety professionals, outdoor sports enthusiasts and anyone with an active lifestyle. Made from a blend of silver-plated nylon, cotton and spandex, these socks provide a close, comfortable fit. Silver-plated nylon is an antimicrobial fiber that eliminates a broad spectrum of bacteria. It works on contact to eradicate all foot odor. These advanced socks also wick moisture away from the foot, regulate temperature, improve resistance to blisters and provide anti-static features. Plus, they're made in America and come with three pairs in a pack. When you have extraordinary work to do, ordinary socks won't do. USOA socks perform and protect in the most extreme situations.