I am always looking for boots and often am disappointed because I have a very wide foot.  I normally wear a 7.5EEE so I often buy an 8.5.  These boots come only in whole sizes so I bought a 9.  They are only a little big for me but my toes are not squished together which is heavenly.  I wear a thick sock inside so my foot doesn't slide around and they feel just a little loose.  They are very comfortable with a interesting kind of squishiness that is hard to describe.  I suffer from frequent foot pain and while wearing these boots my feet have not hurt.  I think if I had gotten the size 8, I would have been disappointed by the width and maybe even the length.