Silicon cases safe against dirt?

[urasia]

Are silicon cases safe against sweat, fingerprint, fat etc? Or do these easily stick on a silicon case?

 

[Nhwhazup]

I've had the white silicone case since the iPhone 6 Plus release and it still looks like new. It may pick up a little lint or dust from time to time, but just wipe it clean and as good as new. It is definitely not like the typical TPU case that picks up staining from the oils in your skin.