These boots are awesome!! They are simple and go with pretty much everything. They are high quality and very comfortable. One thing I wish I had done is buy a size bigger. I usually wear 7's, bought these in 7  and they fit fine as long as I wear regular, thin socks.. I will not be able to wear them with thicker socks, so good thing I live in florida! As for the calf part, they are perfect. I'm thin (5'2 and 110lbs)  and although there is some room left around the calves, they look fantastic on.  I was scared there would be too much room after reading some of the reviews on here.. So unless you are EXTREMELY thin, you will be just fine! As for the color, they are a little darker than I expected, think of wet brown paper bag for the color... but they are still neutral and still go with everything. GREAT purchase!!!