After trying over 30 pairs of walking sandals for Italy....the winner is "Clark's Morse Tour"!!! I truly now believe there is no one sandal that will fit everyone's feet perfectly and thank gawd for Zappos and Amazon. All the edges are comfy, and all the straps adjustable. It's has nice arch support and good support sole. I like the neutral color and my feet don't stand out and it looks pretty decent with skirts and dresses. I would like to find one more pair in black as an alternate. I do have one sandal in black I might take, but it doesn't have a back strap...but it will be my alternate pair, not my main pair so it might work...and it's already broken it.
I tried tons that were suggested in the post below with dozens for shoe suggestions. Since I have never really purchased expensive walking shoes before, having that post really helped me in discovering all the brands and styles out there to try. It was invaluable. Many of them would have worked and were quite cute for just around town..but for MY foot, not walking miles each day. I have found that straps must rub and bother me more than the average person.