I have MS. As such my left leg muscles have atrophied because even though my brain tells those muscles to move....the message never gets there. So, because of that, it creates circulation issues and my left foot doesn't get as much blood as my "normal" right foot. (Yeah....there's a point here and I'm gettin to it).
So, I have bought and used Danner boots and RedWing boots from the big "C". Here in Pa. these boots (800grams or 1000grams of thinsulate) have worked fine to keep my "normal" foot warm. And believe me, I don't move much 'cause I can't. And when my left foot got cold....well, let's just say pain is a true state of mind.
So, to conquer this, I use those battery electric socks. The ones that take the "D" cell batteries. Now, I will say that I only get one season out of 'em before they will no longer work. But I will also say that I use 'em alot. I try to get out as much as my body will let me. These electric socks are the only convenient item I have found that will keep my feet warm.
Yeah, batteries are not cheap...and neither are the socks. But, on the cost\pain scale....it's all worth it.
And....if cold bothers you as much as it bothers me. Hey......it's only money.
Dave