I have comfortably worn 11.5eee dress shoes, but these (in a 12eee) are agonizingly tight--they cause immediate, shooting pains in my heels.  This is the second pair of unwearable Florsheims I've bought recently.  The first such pair gave me raised blisters on the tops of my feet which still haven't completely healed, so I'm not even trying to break these in.