I am a size five with calves that are about 16" wide, these boots have only a circumference of 14 6/16 max for a size five.  The size 11 is the only size that has a circumference of 16 5/8.  So, I sugguest before buying this boot on Amazon, go to Naturalizers website and take a look at thier actual measurements.  I had to send these back. However, they are a great looking and feeling boot.