I get Fitflops because they have helped my knees.  They have the right alignment for my body, and have helped stabilize my knees.  These are as good as expected.  The color is a little more purple than I had hoped, but it is called "Grape", after all.  It still goes well with clothes that have various hot pink or fuchsia colors in them, so I will be able to use them this summer a great deal.  I wear Fitflops for everything.