The Tracking Quarter sock creates a lightweight, cushioned barrier between your foot and shoe with the added benefit of total climate control. FreshTek™ is our special treatment that wicks moisture while eliminating odor-causing bacteria to keep you feeling fresh and dry throughout the entire run. These socks are reinforced in the heel and toe with Infiknit™ for guaranteed durability and designed with a merino wool blend for all day comfort while you're in the elements.