OMG these Wigwam socks are luxurious! They are made from itch free Merino Wool and have what Wigwam call an integrated Olefin liner. Sure this is a mouthful, but what it means is these trail socks keep your feet dry and blister free. Sure these costs are a little pricey than others, but it's like getting two socks in one - a liner and an outer sock. Got to love that technology!