My feet are between 14-15, one slightly longer than the other, and one slightly more swollen than the other, so I'm hoping the extra width will allow for all that.  I usually wear a 15-D, but so far, these seem to be working, although feeling heavy.  But I have heavy legs and feet anyway. They look nice and have some bounce in them.  I'm 6'3&#34; and 360 lbs and have bad neuropathy, so I need strong shoes with lots of support.  These seem to be working so far with my thicker socks too.