Alright, I can't stand it when people are over-dramatic when they write reviews, but really.. THESE SANDALS CHANGED MY LIFE.  When your feet hurt, all of you hurts, this is a fact of life.  Yes sure, you can buy insoles to go into your shoes, and all of that stuff, but sometimes in the summertime all you want to do is WEAR A FLIP FLOP for pete's sake.  After I bought these shoes I could flip and flop to my heart's content, with never even a bit of foot pain. (I don't have low arches, I have NO arches.  It's a gift passed down through my family)  I did send my first pair back for a size larger, so if in doubt, go a size up.