Ladies, what do you think of these boots my wife got me?

I wore em for her on a ski trip in VT last weekend. She had me leave the boots on when I was having with her, and it REALLY turned her on ... not really sure why and she didnt give me a straight answer why. So I guess I am just curious. Here is a link to a pic of the boots she got me http://www.flickr.com/photos/23213363@N07/