The fine inner sock is made from Meryl® that draws moisture away from the foot and transfers it to the outer sock. The dri-release® outer layer is great at drying to leave you feet feeling dry and comfortable. This double-layer construction prevents friction from occuring on your feet and blisters from appearing. The durable heel and toe sections help you put the miles in making Twin Skin® a trusted partner of many runners. The LYCRA® SPORT fibre ensures a close, comfortable fit. Available in a variety of colours and also in a socklet length. Socks designed and manufactured by HILLY, the UK's premier technical performance sock company for runners - founded by Ron Hill.