3 Pairs Men`s Fresh Feel Merino Wool Socks Style: MSQ1760 Size: 6-11 (39-45) Material: 35% Merino Wool, 35% Polyester, 20% Cotton 5% Acrylic, 5% Spandex Merino wool fibers attract water molecules on one end and repel them on the other. This gives the sock the ability to wick moisture away from the skin better than cotton or other forms of wool, these unique properties make it ideal for hiking, cold weather and working out. In cold weather merino wool socks retain heat so your feet stay warm, dry and cozy. In hot weather merino wool socks wick away moisture and sweat so your feet stay comfortable and dry.