Freezing temperatures can be very discouraging and demotivating even for the most avid runners so swiss based x socks winter running socks are designed to warm feet even in the coldest winter weather but sidestepping the problems of overheating and moisture accumulation this winter run stylersquos design incorporates highly insulating merino wool cleverly integrating anti allergenic and breathable mythlan fibre throughout plus 999 pure silver metallised fibres in the footbed to inhib