Olefin produces a fast drying, lightweight sock with superb abrasion resistance and longlasting durability. As a fiber, Olefin retains less than .01 of its weight in moisture and resists deterioration from chemicals and perspiration. The combination of nylon and spandex with the Olefin fiber helps create a softer, more comfortable sock with incredible breathability for everyday wear. Olefin, the only Nobel Prizewinning fiber, has a great story. Its production leaves very little waste therefore,