Love these boots.  Usually wear an 8 or 8.5 and bought the 9.  They fit perfectly.  Thanks to the reviewers who suggested going up a 1/2 size.  The plum color is very dark...almost black looking.  I am finding that the color is very rich and looks great with my skinny jeans.  This material is much lighter than the standard rubber rain boot.  They do make my feet sweat if I wear them all day.  Bought another pair for my daughter.  She wears a 7.5 and I bought her an 8.  Would buy again.