I bought these as a gift for someone, but i have a pair of my own and i absolutely LOVE THEM! I have no idea whether they actually tone my legs, etc. That wasn't the reason why i bough them in the first place. They are just super comfortable and i can walk in them for miles! All other flip flops end up hurting my heels after about 20 minutes of walking, or the straps cut in, or something else. Not these! I think they are actually better for your feet than sneakers, not to mention they are open and perfect for the summer. I wore these when i was traveling in europe, and i walked 5 miles a day, and if it weren't for these flip flops i would have been limping!

The only negative is the price, i don't think they should cost 50$ but hey, nothing you can do about that. I guess regular flip flops can cost 20-30$ and they are not worth the price either.