Other than the fact that they do offer minimal worksmanship! Fits too small and narrow for the size as well, began to hurt my shoe just during trial wear, and are pretty unsubstantial in terms of what they offer - which is basically a big nothing other than a cover for your feet, that you can get with a cheap pair of slip ons. The design is straight up ugly too, half concentric circles that begin to spin your head if you stare at it long enough.