I was so stoked to try these out yesterday. They were great the first run-nice and tight, good feel. After my second run, though, I go to adjust the toe strap and The exact same thing happens as in Defective's problem. The thing just pops off. The threads got pretty stripped, and while I managed to finish off the day, I had to keep checking them every 30 seconds as I was riding to make sure the toe strap didn't come off. I'm going to exchange them tomorrow, and I hopefully won't have the same problem again.