The length of these size 11.5 D boots feels just right for my size 11.3 feet.  The width is amazingly more narrow that any other D width boot I have ever tried on.  This narrow width fits my narrow feet perfectly with thin socks--thinner than I would like to wear in these cold weather boots.  These boots would not fit well a foot that is a &#34;full&#34; or &#34;wide&#34; D.  The uppers fit my skinny ankle and leg perfectly.  The uppers of other boots are often too big for my skinny legs.