Have taken it off and put it back on a few dozen times, no problems. Although I have no sense of smell, Im always told how good it smells when I finish a shower. Very disappointed- I have had these slippers for 3 months and they are falling apart. I ended up with this as my choice and it sounds great very comfortable wires not in the way and its removable and I can just use the Bluetooth when on the go. I am 6 1/2-7 so I got a size down (6) and it?s not too big nor too snug. I recommend it and would definitely buy it again. If you do not want to wait, the sound will equalize itself during the normal operation after some time. These are exactly that. Reviews suggested a size 10 would be the safe way to if you wear a size 9. Youre using them while exercising, so youre moving around, which bends the wire.