Freezing cold feet are a thing of the past thanks to a new range of socks that massage your feet and increase the blood circulation. SeriousSnowSox were originally designed for skiing and snowboarding but are now being sold on the high street. The socks are made up from the newly patented G-FIT technology, a process that improves circulation for stronger leg muscles and warmer feet. The socks are made from highly elastic blend of Nylon and DuPont LYCRA.