The specialty and fun of wool sock running is in the footwear: running or other shoes are not worn on foot, but several socks and at the top wool socks. Running in wool socks are typically practiced during the snowy times of the year. Running in socks in the snow resembles the feeling of running barefoot with shoes.
Wool socks insulate cold well and they keep wet even on very icy surfaces. However, in winter conditions, it is important to dress according to the weather. If you are competing for the first time, you should practice running wool socks before race day!