How do I create a partially transparent flag? I'm making an animation with a flag, and I was wondering if anyone knows how to create like a transparent fabric material? 

The flag looks a bit dull, and doesn't look realistic at all. After some references I noticed that flags are a bit transparent, seeing as they are woven.

Reference :



I need to make this flag have the same type of material

If you can tell me how to make it look like fabric and not like rubber, I'd be very thankful.

P.S: If anybody knows how to make little "ripples", please comment and let me know.
Well this is not too straightforward, especially if you would like a very realistic result. For more realism I would recommend using subsurface scattering to achieve such an effect.
I suggest you start off with translucency as GiantCowFilms suggested. Here is a simple configuration that you can start with:



(Image from Daccy, BlenderArtists)

PS: You would need a few separate passes (masks) as some of parts of that flag are more translucent than others and some are not at all...