Well, it I have had enough time in these zapatos to know that they are pretty much what I needed and less than I hoped for. I was hoping for absolutely warm feet and that did not happen, but I am pretty convinced that a good deal of that is my body chemistry at work as I have chronic issues with cold fingers and toes.
That said, the BG Defroster shoes are well worth a look if you need something more than a typical riding shoe. More details here.
Disclaimer: The shoes were freebies from the manufacturer as noted in the article.