Reduce the reflection and simulate a cotton like fabric

I am currently using MeshPhysicalMaterial with all of the attributes that relates to shininess, glossiness, metalness, reflectivity have been zeroed out but it still looks like this…

How do i get it to reduce the effect where lights are not reflecting and simulate a cloth like fabric texture.?
which do you think should i adjust in here?

by the way only the shirt is 3d rendered.

Thank you everyone

Is sheen by any chance what you’re looking for :eyes: ?

Make sure your roughness is high (0.5-1), and as @mjurczyk said, sheen can simulate the fabric of couch cushions and the like. A good normal map could also help emphasize the “fabric-ness” of the material.