If you suffer from chronic cold feet or if you injured one of your ankles, applying hot or cold therapy with a single sock, or, a pair can contribute to healing.  Our Socks are just that, a Sock, they are not made for walking, they have large fabric hoops at the top to aid in pulling them on, the sides are made with a strip of Spandex to allow the Sock to stretch so one size fits all, you get Flax Seed filled pockets on the top and bottom, or spin the sock to cover the sides of the foot/ankle.