I love love love these boots.  They are beautiful!!! I have 15.5 inch calves and I don't even have to zip and unzip to get them on! They slip right on and comfortably over pants. They are not tights and they are tall boots.  I can't believe I found these. Great sale price too.  I normally wear size 7.5 and I ordered an 8, and glad I did because 7.5 would have been a bit too snug.  So my advice is to order a half size up.