I wear a "B"-width shoe, but this shoe is uncomfortably snug!  The sizes are given as D(M), but I would say that what I got was an "A"!  I loosen the laces all the way but they are still a tight squeeze.

I do like that they are very light weight.  Also that their soles wouldn't collect any gravel (most shoes drag varying sized pebbles into my house where I have nice hardwood floors).  I wish I could keep them but they would only get tighter as my swell with a long hike.

A half size bigger might give me the width I need.