Mercury sock is a durable, comfortable fitting sock ideal for team sports. Cushion foot provides comfort and extra protection for heel and ball of foot. Venta fabric construction allows feet to breathe more easily. Toe box with extra dense fabric reduces wear problems and holes. Comfort top design ensures socks stay in play. 88% Polyester, 10% Nylon, 2% Elastic. Available in many color combinations. Sock fits men's shoe size 7-12 US (or 41-47 EUR).