My husband had trouble with cold feet for years and years.
Tried about everything. Then bought some socks from Dr.
Leonard's (mail order catalog) but they have a website on line.)
Don't know the name of them but you put them on, then your
regular socks over them. They are a shiny silver, sparklie looking. They also make them to wear under gloves. For him
they really work. Have told this to many others; it worked for
them also.