Eurosocks 0125 Silver DryStat Trekking Medium Weight Crew Socks, Beige, Small Polypropylene Drystat 70% , Nylon 15% , Microsupreme 10% , Spandex 5% Imported Elastic arch support and breathable mesh on upper foot Eurosock Trekking Track Collection socks are specially designed for medium weight hiking boots This sock is comfortable with heavy boots as well as light weight Low density padding in foot bed