What is recommended to use to clean the back of the V10?

[psf57]

What is recommended for cleaning the rubber feel (guess they call it dura brand?) back?

 

[jhen80]

Warm water and a wash cloth is all I used. I have the white model

 

[psf57]

Warm water and a wash cloth is all I used. I have the white model

I also have the white model. Thanks