For those saying these dont work on a Kona, I thought so too at first and then realized one bar is longer. Your foot slips right off the side of the one that is extra wide. The first pair I bought for my granddaughter was her size but they were too short. They look so great on, and are some of the most comfortable Ive ever owned. For that use, these are PERFECT! These shoes are fake! They installed easily and worked great. Noise Cancellation: 3/5There is little difference between when its on/off. My bad - but maybe I can save you the same fate. ?Start up screen is a really cheap graphic, but once it moves through it?s all pretty good.