The santini primaloft 20 winter medium profile socks are warm soft and comfortable the cycling socks are fabricated with primaloft microfiber technology to provide thermal insulation and warmth quick draw technology wicks sweat away from your feet to keep you dry and comfortable finished with santini branding mr key features santini primaloft 20 winter medium profile socks fabricated with primaloft microfiber technology to provide thermal insulation quick draw technology wi