These seemed like great replacements for my old comfy but worn out Quicksilvers but after only half an hour of walking in them one of the straps cut into my foot and caused bleeding.  Back they went. After another bad experience with a different Quicksilver pair I decided to try some Reefs and couldn't be happier. Quicksilver quality seems to have gone downhill in my experience. 2 stars because it may have just been an isolated incident. Everyone else seems happy with these.