The most environmentally friendly materials and processes are used in building Swiftwick's synthetic sock. As the only Nobel Prize winning fiber, olefin retains less than .01% of its weight in moisture. It also resists deterioration from detergents and perspiration. This produces a fast drying, lightweight sock with incredible breathability. The capillary action of trilobal nylons and multifilament olefin is a mechanical wicking action, which by design, manages moisture without the need for chemicals. Balancing for intended thickness, performance, cost and purpose, each line is constructed specifically for fit and function.