Have worn 11.5 wide running shoes for years (10.5 wide in regular shoes).  Used to buy inexpensive brands but now figured it is time to buy better shoes.  Ordered my usual size in 11.5 and in 2E width and found that these shoes are a bit too short but (the deal breaker) much too narrow.  While they appear to be really well cushioned shoes, they are not sized correctly.  I do not recommend buying these online unless you get free shipping on returns.  However, I think Brooks is not unique to this - found other premium brands also vary sizes from standard shoe sizes.  This is really BS - I can go to any department store that sells cheap $20 sneakers and they all fit fine using my standard size.  But these running shoes apparently do not follow standard sizing and make it impossible to buy shoes online easily.  Can't these premium brand running shoe companies spend some of their profits on a proper measuring tool to produce their shoes??