For a long time, I have been searching for a pair of comfortable walking sandals.  The Women's Merrel Via III are by far the best I have found.  They were instantly comfortable.  I don't like wearing hot shoes for walking in the summer.  They soles don't stick to your feet.  They are also nicely padded and supportive to the shape of your feet.  The velcro straps give them easy adjustability.  They are also more attractive than other brands of athletic sandals.  I will buy another pair next summer, in a another color.  They were also shipped in a timely manner, without shipping charges!