My fiancÃƒÂ© recommended an improvement on my previous design, which this incorporates. Now the band doesn't come apart, but instead the clasp resides where the iPod nano clips on. The clasp requires no flex; it's one-way, so the act of the band pulling around your wrist keeps it in place. Then clipping the iPod onto it secures it even more. This version is much more secure and is easier to take on and off.