After reading reviews on these shoes, I felt unsure on what size to order because of mixed opinions on their fit. I found them not especially what I expected in a wide width, in my opinion they felt a bit more snug than what I thought they would be. I also ordered them in a half size longer, that was a mistake. I also found them loose in the heel, and that seemed like a frequent complaint from other reviews. This was my first pair of Clark shoes and I was looking forward to wearing them.
So...loose in the heel, true-to-length, and a tad snug for a wide width.
  I did return them and ordered a half size down, and I'm still on the fence. The issues are still there, just in a shorter version. With all the positive comments on comfort and wearability out of the box, I was a bit surprised that one shoe rubbed the back the back of my heel. Another positive from reviews was comfort...had it not been for the rubbing on my heel, it would have been good but not great. I have plantar fasciitis and was hoping to find relief in these shoes. Maybe I was expecting too much, but for the cost, I'm a bit disappointed. Thank goodness they were on sale, I would have been very unhappy if I'd paid full price. They aren't the most attractive shoes, but they look great with jeans. I do wish they had more of a soft cushion inside to help with my foot pain.
  Just want to say that this whole transaction went smoothly in spite of the fact that I had to return the first pair and order another, and I'm content with that aspect.