i got the 11/12 since i wear a 10. Das geht vorher nie so schnell und einfach. Thick and has some support. Otherwise it installs very easy and is sturdy. Even with that change, these are too narrow and it is difficult to keep my feet aligned with the slipper. The detail came apart after 3 says of off and on wear, There is a thumb rest while the curvature of the mouse is a treat to your right hand. , but all else is nice. I find that some songs sound really good with this headset, while others sound a little off. I should have listened to the reviews.