I may have purchased another one of these instead had I known. But they said that there was too much wear on the sole so it was not under warranty. My feet feel 100% better. The first pair lasted her 4 years before being handed down to the next sister who continues to wear them daily. I?ve had it for only a week and it?s already all scratched up from inserting and taking out my water bottle. It fit perfect on my son?s 16? bicycle. These keens are light weight and have good moderate support. Drops calls, battery life is zero! Highly recommend this! Sure enough this controller delivers so well!