The ultimate anti-blister double layer sock. Minimises friction on your foot to keep your feet comfortable. 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 your feet feeling dry and comfortable. This double-layer construction prevents friction from occurring 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. Features: --Double-Layer Construction - Prevents friction and rubbing. --Q-Skin Inner - Wicks away sweat and external moisture. --DriRelease E.C.O. Outer - Ensures a rapid drytime.