I bought the 10AA in dark brown.  They were extremely tight and made my toes go numb slightly during the break in period (I expected a break in period).  I never got any blisters.  Now, I wear them all the time.  They are very comfortable to wear all day.  I walk a lot now on cobblestone streets and have no problems with them.  I am very pleased.  They dress up jeans and look good with slacks.