Please revert back to your credible workmanship, charge more if you must, but do not continue to resort to inferior quality. I wore it all day today at work and it was just so comfortable. This utilized the built-in GPS receiver and would track the route and at the end, would plot it in the MiFit app. A friend of mine has the same ones and hers squeak too. Fácil de armar y muy útil . I have narrow feet and other brand slides feel so huge on my feet. It is entirely unpadded and tore my skin up after a few minutes of wear. I look forward to walking in these! As we were installing the bag, on the the back straps ripped when we were tightening it to the top of the car. Whoreible low quality straight from China mine was broken !