@maskupmelb You've been lucky, I've had vflex break. It's the same crappy rubber as Aura I think, and there isn't a model of vflex with elastic. Someone suggested to staple your own better straps.
@马斯库普梅尔布，你很幸运，我有过vflex休息。我认为它和Aura是一样的烂橡胶，而且没有一个有弹性的vflex模型。有人建议你自己钉一条更好的带子。