I've custom modded my Zinos.
Now, they are
perfect!
I've heated the retainer 'til it was soft with a blow-dryer, formed it to perfectly fit my head and then cooled it under cold water. The form is now fixed.
They are more narrow now, resulting in a more comfortable and stronger fit, stronger bass and better isolation.
Even if I put 'em back in the box they still keep their new form as long as the plastic stays cold.
Thank you for the best looking, best sounding and safest headphones I've ever had!