I've never actually cold feet and also freezing not easy. But I have found that I would have liked a little warmer while leisurely reading or prolonged Home Office Works feet ... Maybe because I'm 40 this year ???
These old men's slippers (which is affectionately meant) fits all - super nice and toasty warm. I'm now back in the winter, when I (yes, this is written, have it checked) will read with my Kindle and the slippers on his feet in my English armchair ...
Attention: the size indicator of the manufacturer must be taken absolutely seriously. I have normal shoe size 46 and have the slippers the safe side in 48 (!) Ordered. And they fit well and the zipper goes degrees so to.
If you are unsure perhaps order a model with Velcro closure.
So order a size bigger size and everything is gut.-