I needed to replace my well-worn Nike memory foam flip flops, and these caught my eye, at a great price.  I was a little leary, since I really like my Nikes.  I was  happy that these Adidas are great, too--I can wear them for hours.  I have narrow feet;  these fit just right and have good support.  I wear anywhere from a 7 1/2 to 8 1/2, so I got the 8's, and they are perfect.