The 1000 Mile All Terrain Sock is designed with maximum comfort in mind no matter how hard the going gets The unique combination of Merino Wool and Cotton fibres with 100 Tactel reg wicking inner layer helps to maintain a comfortable temperature for the foot during activity Adding to that the air flow channels and top venting for superior breathability this is the perfect sock for keeping your feet cool This product contains Merino Wool Merino wool is one of softest types of wool available and is perfect for regulating body temperature The wool provides warmth without overheating the wearer and its moisture wicking properties combined with being slightly moisture repellent allow the wearer to remain dry