I bought these after seeing a reviewer say that her feet don't ache anymore...and it's true, my feet don't have a migraine at the end of the day and my knees, back and hips don't either...I'm not sure about the other benefits but my butt does seem a bit tighter. All I know is MY FEET DON"T HURT ANYMORE...sorry for yelling but I want to sing from the mountain tops...Now i wish they would make an oxford-style shoe for winter...hint, hint