These headphones are shipping with G cushions installed on the headphones, in addition Grado has included in the box, a pair of F cushions.

In the package is a card that says…

At Grado we understand that the preferred sound signature changes from listener to listener. There are many ways we can tune a headphone but only one way we can have you personalize the performance of your headphones, allowing you to experience music the way you like. For this reason, we have included a pair of our Grado F style cushions for your consideration when listening to your new HP100 SE headphones. The F style cushions were the standard cushions on the original HP1, HP2 and HP3 headphones. We won’t tell you which to use, or what you will hear, that would be our opinion and the only opinion that matters is your own.