I adore these sandals. I now have 2 pair. I have plantar fasciitis and have had a difficult time with sandals.  I actually went for several years barely wearing flip flops because of the pain.  Then I found these and LOVE THEM!  I can wear them all day long and not suffer.  I basically live in them during the summer.

They have great gripping pads on the bottom, and really fabulous arch support.  They are sturdy, strong, stable sandals.

I absolutely recommend these!

Other shoes I have found that are comfortable:  Dansko, Chaco and Jambu.