I have tried a couple of things now but can't seem to get the material just right. I am trying to create a white blouse material that looks like the picture below. Has anybody got some tips or maybe some samples that are close to it?
I'm not sure exactly how physically correct this is but artistically it should look fine.
Note: I've exaggerated this effect a bit to be better visible.
Mix Principled BSDF with Translucent (pure white color) shader trough Layer Weight > Fresnel. You can tweak Fresnel to make it more/less transparent.