Introducing the baselayer thermal sock to wear under hiking socks these will ensure your feet are kept warm and in good working order when you are out on the trial. They also wick away any moisture and are built with a flat toe seam to minimise bulk., Endurofil has the lowest thermal conductivity of any yarn., They will also transport moisture generated quickly away from the skin., Extremely quick drying they\'ll be ready and waiting in the morning., Flat Toe Seam minimises bulk that could cause irritation., Built on a structure of Lycra.