This could be attributed to the fully open design on the 660 verses the open port on the GSP500. I have been a fan of Chaco shoes for a long time but stopped wearing them for a couple of years. flux black pink white At first glance of the new pair, I thought they were just like the originals, then I opened it. I had gotten these for my husband since he had been wanting some wireless earbuds or a while but didn’t want to spend $100s on the Apple ones. flux black pink white Item was returned. flux black pink white I bought this due to unavailability of the T150 or T300 by Thrustmaster. But may be, go with a bigger one. Finally I was hoping that if the shoe was water proof it might also serve as a shower shoe. flux black pink white BUT the lining of the foot beds is peeling off and the sole is coming apart at the toe of one of the shoes. I would have given five stars if not for those two issues, and the price.
flux black pink white