Originally Posted by Fedace
does GI2's have the same problem ??
The sound is caused by the upper rubber "mesh" crimping and releasing. I'm surprised to hear from the one poster who says the GR1's did the same thing for him. The uppers on the GR1's were made of a much thinner and softer mesh material. In fact, the GR1's were a better design in my view...more comfortable right out of the box. The GR2's need about 1 hour of break-in and even then they are not as comfortable as the older model. Still the most comfortable performance shoe on the market....