Designed using a Tactel inner layer not only to help protect against friction on the skin but also to wick away moisture, helping to keep the foot feeling cool and dry.Tactel inner layer - wicks away perspiration to the moisture absorbing outer layer, keeping the foot dryFibres and top venting - maintains a comfortable temperature for the footArch bracing - for additional supportHeel Power Technology - keeps the sock firmly in placeFabric: Outer Layer - 68% Cotton, 30% Nylon & 2% Elastane Lycra/ Inner Layer - 100% Tactel