I love my other 2 pairs, so I by no means have given up on Chacos, just this pair for whatever reason doesnt seem to be fit properly. With ANC off, it sounds very muffled! if you are looking for a more secure alternative to a flip flop, try these puppiez out-they leave a Really cute tanline on your feet ;~) Im using the M5s as drum overheads and wanted these for recording stereo acoustic guitar and field recording. One week into use now, and I have been a bit careless unfortunately with my headphones. Bei . It takes some effort to get the phone in but once after that it holds the phone pretty well. These by far have been the best shoe for me. With thicker socks (like Bombas, as seen in my picture) they?re a little more snug. Would really like to give 5 stars; but, they have to get packaging / shipping under control.