I love Merrell products and really wanted to like these sandals.  I ordered the same size as my other Merrell shoes and sandals.  Length was fine, but I found them uncomfortable to walk in.  There is an edge to the insole of the sandal (see photo), and I found that when I stepped, the ball of my foot (below the big toe) would land on that edge, ouch!  I do not have wide feet, but I cannot wear these sandals.  Sad to say, they are being returned.