This is such a pretty band. I had some difficulty getting it hooked, mainly because the clasp is a heart and the opening seems backwards from what it should be. It keeps the watch loose on your wrist so you don't have to worry about extensive sweat. Similarly, it is more open than other ones I have seen so it will also not hold moisture and smell in as much as others.
So far it isn't loose enough to interfere with keeping track of my heart rate but I also tend to turn the watch so that it sits on the wrist to take the meausrements just fine. The real test whill be when I go out this afternoon and am abe to tell if it is tight enough to register my steps.